1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2015 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
21 /* See Fibre Channel protocol T11 FC-LS for details */
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/slab.h>
25 #include <linux/interrupt.h>
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_device.h>
29 #include <scsi/scsi_host.h>
30 #include <scsi/scsi_transport_fc.h>
36 #include "lpfc_sli4.h"
38 #include "lpfc_disc.h"
39 #include "lpfc_scsi.h"
41 #include "lpfc_logmsg.h"
42 #include "lpfc_crtn.h"
43 #include "lpfc_vport.h"
44 #include "lpfc_debugfs.h"
46 static int lpfc_els_retry(struct lpfc_hba *, struct lpfc_iocbq *,
48 static void lpfc_cmpl_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *,
50 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport);
51 static int lpfc_issue_els_fdisc(struct lpfc_vport *vport,
52 struct lpfc_nodelist *ndlp, uint8_t retry);
53 static int lpfc_issue_fabric_iocb(struct lpfc_hba *phba,
54 struct lpfc_iocbq *iocb);
56 static int lpfc_max_els_tries = 3;
59 * lpfc_els_chk_latt - Check host link attention event for a vport
60 * @vport: pointer to a host virtual N_Port data structure.
62 * This routine checks whether there is an outstanding host link
63 * attention event during the discovery process with the @vport. It is done
64 * by reading the HBA's Host Attention (HA) register. If there is any host
65 * link attention events during this @vport's discovery process, the @vport
66 * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall
67 * be issued if the link state is not already in host link cleared state,
68 * and a return code shall indicate whether the host link attention event
71 * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport
72 * state in LPFC_VPORT_READY, the request for checking host link attention
73 * event will be ignored and a return code shall indicate no host link
74 * attention event had happened.
77 * 0 - no host link attention event happened
78 * 1 - host link attention event happened
81 lpfc_els_chk_latt(struct lpfc_vport *vport)
83 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
84 struct lpfc_hba *phba = vport->phba;
87 if (vport->port_state >= LPFC_VPORT_READY ||
88 phba->link_state == LPFC_LINK_DOWN ||
89 phba->sli_rev > LPFC_SLI_REV3)
92 /* Read the HBA Host Attention Register */
93 if (lpfc_readl(phba->HAregaddr, &ha_copy))
96 if (!(ha_copy & HA_LATT))
99 /* Pending Link Event during Discovery */
100 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
101 "0237 Pending Link Event during "
102 "Discovery: State x%x\n",
103 phba->pport->port_state);
105 /* CLEAR_LA should re-enable link attention events and
106 * we should then immediately take a LATT event. The
107 * LATT processing should call lpfc_linkdown() which
108 * will cleanup any left over in-progress discovery
111 spin_lock_irq(shost->host_lock);
112 vport->fc_flag |= FC_ABORT_DISCOVERY;
113 spin_unlock_irq(shost->host_lock);
115 if (phba->link_state != LPFC_CLEAR_LA)
116 lpfc_issue_clear_la(phba, vport);
122 * lpfc_prep_els_iocb - Allocate and prepare a lpfc iocb data structure
123 * @vport: pointer to a host virtual N_Port data structure.
124 * @expectRsp: flag indicating whether response is expected.
125 * @cmdSize: size of the ELS command.
126 * @retry: number of retries to the command IOCB when it fails.
127 * @ndlp: pointer to a node-list data structure.
128 * @did: destination identifier.
129 * @elscmd: the ELS command code.
131 * This routine is used for allocating a lpfc-IOCB data structure from
132 * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters
133 * passed into the routine for discovery state machine to issue an Extended
134 * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation
135 * and preparation routine that is used by all the discovery state machine
136 * routines and the ELS command-specific fields will be later set up by
137 * the individual discovery machine routines after calling this routine
138 * allocating and preparing a generic IOCB data structure. It fills in the
139 * Buffer Descriptor Entries (BDEs), allocates buffers for both command
140 * payload and response payload (if expected). The reference count on the
141 * ndlp is incremented by 1 and the reference to the ndlp is put into
142 * context1 of the IOCB data structure for this IOCB to hold the ndlp
143 * reference for the command's callback function to access later.
146 * Pointer to the newly allocated/prepared els iocb data structure
147 * NULL - when els iocb data structure allocation/preparation failed
150 lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
151 uint16_t cmdSize, uint8_t retry,
152 struct lpfc_nodelist *ndlp, uint32_t did,
155 struct lpfc_hba *phba = vport->phba;
156 struct lpfc_iocbq *elsiocb;
157 struct lpfc_dmabuf *pcmd, *prsp, *pbuflist;
158 struct ulp_bde64 *bpl;
162 if (!lpfc_is_link_up(phba))
165 /* Allocate buffer for command iocb */
166 elsiocb = lpfc_sli_get_iocbq(phba);
172 * If this command is for fabric controller and HBA running
173 * in FIP mode send FLOGI, FDISC and LOGO as FIP frames.
175 if ((did == Fabric_DID) &&
176 (phba->hba_flag & HBA_FIP_SUPPORT) &&
177 ((elscmd == ELS_CMD_FLOGI) ||
178 (elscmd == ELS_CMD_FDISC) ||
179 (elscmd == ELS_CMD_LOGO)))
182 elsiocb->iocb_flag |=
183 ((LPFC_ELS_ID_FLOGI << LPFC_FIP_ELS_ID_SHIFT)
184 & LPFC_FIP_ELS_ID_MASK);
187 elsiocb->iocb_flag |=
188 ((LPFC_ELS_ID_FDISC << LPFC_FIP_ELS_ID_SHIFT)
189 & LPFC_FIP_ELS_ID_MASK);
192 elsiocb->iocb_flag |=
193 ((LPFC_ELS_ID_LOGO << LPFC_FIP_ELS_ID_SHIFT)
194 & LPFC_FIP_ELS_ID_MASK);
198 elsiocb->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
200 icmd = &elsiocb->iocb;
202 /* fill in BDEs for command */
203 /* Allocate buffer for command payload */
204 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
206 pcmd->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &pcmd->phys);
207 if (!pcmd || !pcmd->virt)
208 goto els_iocb_free_pcmb_exit;
210 INIT_LIST_HEAD(&pcmd->list);
212 /* Allocate buffer for response payload */
214 prsp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
216 prsp->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
218 if (!prsp || !prsp->virt)
219 goto els_iocb_free_prsp_exit;
220 INIT_LIST_HEAD(&prsp->list);
224 /* Allocate buffer for Buffer ptr list */
225 pbuflist = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
227 pbuflist->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
229 if (!pbuflist || !pbuflist->virt)
230 goto els_iocb_free_pbuf_exit;
232 INIT_LIST_HEAD(&pbuflist->list);
235 icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
236 icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
237 icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
238 icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64));
240 icmd->un.elsreq64.remoteID = did; /* DID */
241 icmd->ulpCommand = CMD_ELS_REQUEST64_CR;
242 if (elscmd == ELS_CMD_FLOGI)
243 icmd->ulpTimeout = FF_DEF_RATOV * 2;
245 icmd->ulpTimeout = phba->fc_ratov * 2;
247 icmd->un.xseq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
248 icmd->un.xseq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
249 icmd->un.xseq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
250 icmd->un.xseq64.bdl.bdeSize = sizeof(struct ulp_bde64);
251 icmd->un.xseq64.xmit_els_remoteID = did; /* DID */
252 icmd->ulpCommand = CMD_XMIT_ELS_RSP64_CX;
254 icmd->ulpBdeCount = 1;
256 icmd->ulpClass = CLASS3;
259 * If we have NPIV enabled, we want to send ELS traffic by VPI.
260 * For SLI4, since the driver controls VPIs we also want to include
261 * all ELS pt2pt protocol traffic as well.
263 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) ||
264 ((phba->sli_rev == LPFC_SLI_REV4) &&
265 (vport->fc_flag & FC_PT2PT))) {
268 icmd->un.elsreq64.myID = vport->fc_myDID;
270 /* For ELS_REQUEST64_CR, use the VPI by default */
271 icmd->ulpContext = phba->vpi_ids[vport->vpi];
275 /* The CT field must be 0=INVALID_RPI for the ECHO cmd */
276 if (elscmd == ELS_CMD_ECHO)
277 icmd->ulpCt_l = 0; /* context = invalid RPI */
279 icmd->ulpCt_l = 1; /* context = VPI */
282 bpl = (struct ulp_bde64 *) pbuflist->virt;
283 bpl->addrLow = le32_to_cpu(putPaddrLow(pcmd->phys));
284 bpl->addrHigh = le32_to_cpu(putPaddrHigh(pcmd->phys));
285 bpl->tus.f.bdeSize = cmdSize;
286 bpl->tus.f.bdeFlags = 0;
287 bpl->tus.w = le32_to_cpu(bpl->tus.w);
291 bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys));
292 bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys));
293 bpl->tus.f.bdeSize = FCELSSIZE;
294 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
295 bpl->tus.w = le32_to_cpu(bpl->tus.w);
298 /* prevent preparing iocb with NULL ndlp reference */
299 elsiocb->context1 = lpfc_nlp_get(ndlp);
300 if (!elsiocb->context1)
301 goto els_iocb_free_pbuf_exit;
302 elsiocb->context2 = pcmd;
303 elsiocb->context3 = pbuflist;
304 elsiocb->retry = retry;
305 elsiocb->vport = vport;
306 elsiocb->drvrTimeout = (phba->fc_ratov << 1) + LPFC_DRVR_TIMEOUT;
309 list_add(&prsp->list, &pcmd->list);
312 /* Xmit ELS command <elsCmd> to remote NPORT <did> */
313 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
314 "0116 Xmit ELS command x%x to remote "
315 "NPORT x%x I/O tag: x%x, port state:x%x"
317 elscmd, did, elsiocb->iotag,
321 /* Xmit ELS response <elsCmd> to remote NPORT <did> */
322 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
323 "0117 Xmit ELS response x%x to remote "
324 "NPORT x%x I/O tag: x%x, size: x%x "
325 "port_state x%x fc_flag x%x\n",
326 elscmd, ndlp->nlp_DID, elsiocb->iotag,
327 cmdSize, vport->port_state,
332 els_iocb_free_pbuf_exit:
334 lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
337 els_iocb_free_prsp_exit:
338 lpfc_mbuf_free(phba, pcmd->virt, pcmd->phys);
341 els_iocb_free_pcmb_exit:
343 lpfc_sli_release_iocbq(phba, elsiocb);
348 * lpfc_issue_fabric_reglogin - Issue fabric registration login for a vport
349 * @vport: pointer to a host virtual N_Port data structure.
351 * This routine issues a fabric registration login for a @vport. An
352 * active ndlp node with Fabric_DID must already exist for this @vport.
353 * The routine invokes two mailbox commands to carry out fabric registration
354 * login through the HBA firmware: the first mailbox command requests the
355 * HBA to perform link configuration for the @vport; and the second mailbox
356 * command requests the HBA to perform the actual fabric registration login
360 * 0 - successfully issued fabric registration login for @vport
361 * -ENXIO -- failed to issue fabric registration login for @vport
364 lpfc_issue_fabric_reglogin(struct lpfc_vport *vport)
366 struct lpfc_hba *phba = vport->phba;
368 struct lpfc_dmabuf *mp;
369 struct lpfc_nodelist *ndlp;
370 struct serv_parm *sp;
374 sp = &phba->fc_fabparam;
375 ndlp = lpfc_findnode_did(vport, Fabric_DID);
376 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
381 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
387 vport->port_state = LPFC_FABRIC_CFG_LINK;
388 lpfc_config_link(phba, mbox);
389 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
392 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
393 if (rc == MBX_NOT_FINISHED) {
398 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
403 rc = lpfc_reg_rpi(phba, vport->vpi, Fabric_DID, (uint8_t *)sp, mbox,
410 mbox->mbox_cmpl = lpfc_mbx_cmpl_fabric_reg_login;
412 /* increment the reference count on ndlp to hold reference
413 * for the callback routine.
415 mbox->context2 = lpfc_nlp_get(ndlp);
417 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
418 if (rc == MBX_NOT_FINISHED) {
420 goto fail_issue_reg_login;
425 fail_issue_reg_login:
426 /* decrement the reference count on ndlp just incremented
427 * for the failed mbox command.
430 mp = (struct lpfc_dmabuf *) mbox->context1;
431 lpfc_mbuf_free(phba, mp->virt, mp->phys);
434 mempool_free(mbox, phba->mbox_mem_pool);
437 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
438 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
439 "0249 Cannot issue Register Fabric login: Err %d\n", err);
444 * lpfc_issue_reg_vfi - Register VFI for this vport's fabric login
445 * @vport: pointer to a host virtual N_Port data structure.
447 * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for
448 * the @vport. This mailbox command is necessary for SLI4 port only.
451 * 0 - successfully issued REG_VFI for @vport
452 * A failure code otherwise.
455 lpfc_issue_reg_vfi(struct lpfc_vport *vport)
457 struct lpfc_hba *phba = vport->phba;
458 LPFC_MBOXQ_t *mboxq = NULL;
459 struct lpfc_nodelist *ndlp;
460 struct lpfc_dmabuf *dmabuf = NULL;
463 /* move forward in case of SLI4 FC port loopback test and pt2pt mode */
464 if ((phba->sli_rev == LPFC_SLI_REV4) &&
465 !(phba->link_flag & LS_LOOPBACK_MODE) &&
466 !(vport->fc_flag & FC_PT2PT)) {
467 ndlp = lpfc_findnode_did(vport, Fabric_DID);
468 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
474 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
480 /* Supply CSP's only if we are fabric connect or pt-to-pt connect */
481 if ((vport->fc_flag & FC_FABRIC) || (vport->fc_flag & FC_PT2PT)) {
482 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
487 dmabuf->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &dmabuf->phys);
492 memcpy(dmabuf->virt, &phba->fc_fabparam,
493 sizeof(struct serv_parm));
496 vport->port_state = LPFC_FABRIC_CFG_LINK;
498 lpfc_reg_vfi(mboxq, vport, dmabuf->phys);
500 lpfc_reg_vfi(mboxq, vport, 0);
502 mboxq->mbox_cmpl = lpfc_mbx_cmpl_reg_vfi;
503 mboxq->vport = vport;
504 mboxq->context1 = dmabuf;
505 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
506 if (rc == MBX_NOT_FINISHED) {
514 mempool_free(mboxq, phba->mbox_mem_pool);
517 lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
521 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
522 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
523 "0289 Issue Register VFI failed: Err %d\n", rc);
528 * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login
529 * @vport: pointer to a host virtual N_Port data structure.
531 * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for
532 * the @vport. This mailbox command is necessary for SLI4 port only.
535 * 0 - successfully issued REG_VFI for @vport
536 * A failure code otherwise.
539 lpfc_issue_unreg_vfi(struct lpfc_vport *vport)
541 struct lpfc_hba *phba = vport->phba;
542 struct Scsi_Host *shost;
546 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
548 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
549 "2556 UNREG_VFI mbox allocation failed"
550 "HBA state x%x\n", phba->pport->port_state);
554 lpfc_unreg_vfi(mboxq, vport);
555 mboxq->vport = vport;
556 mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl;
558 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
559 if (rc == MBX_NOT_FINISHED) {
560 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
561 "2557 UNREG_VFI issue mbox failed rc x%x "
563 rc, phba->pport->port_state);
564 mempool_free(mboxq, phba->mbox_mem_pool);
568 shost = lpfc_shost_from_vport(vport);
569 spin_lock_irq(shost->host_lock);
570 vport->fc_flag &= ~FC_VFI_REGISTERED;
571 spin_unlock_irq(shost->host_lock);
576 * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
577 * @vport: pointer to a host virtual N_Port data structure.
578 * @sp: pointer to service parameter data structure.
580 * This routine is called from FLOGI/FDISC completion handler functions.
581 * lpfc_check_clean_addr_bit return 1 when FCID/Fabric portname/ Fabric
582 * node nodename is changed in the completion service parameter else return
583 * 0. This function also set flag in the vport data structure to delay
584 * NP_Port discovery after the FLOGI/FDISC completion if Clean address bit
585 * in FLOGI/FDISC response is cleared and FCID/Fabric portname/ Fabric
586 * node nodename is changed in the completion service parameter.
589 * 0 - FCID and Fabric Nodename and Fabric portname is not changed.
590 * 1 - FCID or Fabric Nodename or Fabric portname is changed.
594 lpfc_check_clean_addr_bit(struct lpfc_vport *vport,
595 struct serv_parm *sp)
597 uint8_t fabric_param_changed = 0;
598 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
600 if ((vport->fc_prevDID != vport->fc_myDID) ||
601 memcmp(&vport->fabric_portname, &sp->portName,
602 sizeof(struct lpfc_name)) ||
603 memcmp(&vport->fabric_nodename, &sp->nodeName,
604 sizeof(struct lpfc_name)))
605 fabric_param_changed = 1;
608 * Word 1 Bit 31 in common service parameter is overloaded.
609 * Word 1 Bit 31 in FLOGI request is multiple NPort request
610 * Word 1 Bit 31 in FLOGI response is clean address bit
612 * If fabric parameter is changed and clean address bit is
613 * cleared delay nport discovery if
614 * - vport->fc_prevDID != 0 (not initial discovery) OR
615 * - lpfc_delay_discovery module parameter is set.
617 if (fabric_param_changed && !sp->cmn.clean_address_bit &&
618 (vport->fc_prevDID || lpfc_delay_discovery)) {
619 spin_lock_irq(shost->host_lock);
620 vport->fc_flag |= FC_DISC_DELAYED;
621 spin_unlock_irq(shost->host_lock);
624 return fabric_param_changed;
629 * lpfc_cmpl_els_flogi_fabric - Completion function for flogi to a fabric port
630 * @vport: pointer to a host virtual N_Port data structure.
631 * @ndlp: pointer to a node-list data structure.
632 * @sp: pointer to service parameter data structure.
633 * @irsp: pointer to the IOCB within the lpfc response IOCB.
635 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
636 * function to handle the completion of a Fabric Login (FLOGI) into a fabric
637 * port in a fabric topology. It properly sets up the parameters to the @ndlp
638 * from the IOCB response. It also check the newly assigned N_Port ID to the
639 * @vport against the previously assigned N_Port ID. If it is different from
640 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
641 * is invoked on all the remaining nodes with the @vport to unregister the
642 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
643 * is invoked to register login to the fabric.
646 * 0 - Success (currently, always return 0)
649 lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
650 struct serv_parm *sp, IOCB_t *irsp)
652 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
653 struct lpfc_hba *phba = vport->phba;
654 struct lpfc_nodelist *np;
655 struct lpfc_nodelist *next_np;
656 uint8_t fabric_param_changed;
658 spin_lock_irq(shost->host_lock);
659 vport->fc_flag |= FC_FABRIC;
660 spin_unlock_irq(shost->host_lock);
662 phba->fc_edtov = be32_to_cpu(sp->cmn.e_d_tov);
663 if (sp->cmn.edtovResolution) /* E_D_TOV ticks are in nanoseconds */
664 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
666 phba->fc_edtovResol = sp->cmn.edtovResolution;
667 phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
669 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
670 spin_lock_irq(shost->host_lock);
671 vport->fc_flag |= FC_PUBLIC_LOOP;
672 spin_unlock_irq(shost->host_lock);
675 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
676 memcpy(&ndlp->nlp_portname, &sp->portName, sizeof(struct lpfc_name));
677 memcpy(&ndlp->nlp_nodename, &sp->nodeName, sizeof(struct lpfc_name));
678 ndlp->nlp_class_sup = 0;
679 if (sp->cls1.classValid)
680 ndlp->nlp_class_sup |= FC_COS_CLASS1;
681 if (sp->cls2.classValid)
682 ndlp->nlp_class_sup |= FC_COS_CLASS2;
683 if (sp->cls3.classValid)
684 ndlp->nlp_class_sup |= FC_COS_CLASS3;
685 if (sp->cls4.classValid)
686 ndlp->nlp_class_sup |= FC_COS_CLASS4;
687 ndlp->nlp_maxframe = ((sp->cmn.bbRcvSizeMsb & 0x0F) << 8) |
688 sp->cmn.bbRcvSizeLsb;
690 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
691 memcpy(&vport->fabric_portname, &sp->portName,
692 sizeof(struct lpfc_name));
693 memcpy(&vport->fabric_nodename, &sp->nodeName,
694 sizeof(struct lpfc_name));
695 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
697 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
698 if (sp->cmn.response_multiple_NPort) {
699 lpfc_printf_vlog(vport, KERN_WARNING,
701 "1816 FLOGI NPIV supported, "
702 "response data 0x%x\n",
703 sp->cmn.response_multiple_NPort);
704 spin_lock_irq(&phba->hbalock);
705 phba->link_flag |= LS_NPIV_FAB_SUPPORTED;
706 spin_unlock_irq(&phba->hbalock);
708 /* Because we asked f/w for NPIV it still expects us
709 to call reg_vnpid atleast for the physcial host */
710 lpfc_printf_vlog(vport, KERN_WARNING,
712 "1817 Fabric does not support NPIV "
713 "- configuring single port mode.\n");
714 spin_lock_irq(&phba->hbalock);
715 phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
716 spin_unlock_irq(&phba->hbalock);
721 * For FC we need to do some special processing because of the SLI
722 * Port's default settings of the Common Service Parameters.
724 if ((phba->sli_rev == LPFC_SLI_REV4) &&
725 (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)) {
726 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
727 if (fabric_param_changed)
728 lpfc_unregister_fcf_prep(phba);
730 /* This should just update the VFI CSPs*/
731 if (vport->fc_flag & FC_VFI_REGISTERED)
732 lpfc_issue_reg_vfi(vport);
735 if (fabric_param_changed &&
736 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
738 /* If our NportID changed, we need to ensure all
739 * remaining NPORTs get unreg_login'ed.
741 list_for_each_entry_safe(np, next_np,
742 &vport->fc_nodes, nlp_listp) {
743 if (!NLP_CHK_NODE_ACT(np))
745 if ((np->nlp_state != NLP_STE_NPR_NODE) ||
746 !(np->nlp_flag & NLP_NPR_ADISC))
748 spin_lock_irq(shost->host_lock);
749 np->nlp_flag &= ~NLP_NPR_ADISC;
750 spin_unlock_irq(shost->host_lock);
751 lpfc_unreg_rpi(vport, np);
753 lpfc_cleanup_pending_mbox(vport);
755 if (phba->sli_rev == LPFC_SLI_REV4) {
756 lpfc_sli4_unreg_all_rpis(vport);
757 lpfc_mbx_unreg_vpi(vport);
758 spin_lock_irq(shost->host_lock);
759 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
760 spin_unlock_irq(shost->host_lock);
764 * For SLI3 and SLI4, the VPI needs to be reregistered in
765 * response to this fabric parameter change event.
767 spin_lock_irq(shost->host_lock);
768 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
769 spin_unlock_irq(shost->host_lock);
770 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
771 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
773 * Driver needs to re-reg VPI in order for f/w
774 * to update the MAC address.
776 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
777 lpfc_register_new_vport(phba, vport, ndlp);
781 if (phba->sli_rev < LPFC_SLI_REV4) {
782 lpfc_nlp_set_state(vport, ndlp, NLP_STE_REG_LOGIN_ISSUE);
783 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED &&
784 vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
785 lpfc_register_new_vport(phba, vport, ndlp);
787 lpfc_issue_fabric_reglogin(vport);
789 ndlp->nlp_type |= NLP_FABRIC;
790 lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
791 if ((!(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) &&
792 (vport->vpi_state & LPFC_VPI_REGISTERED)) {
793 lpfc_start_fdiscs(phba);
794 lpfc_do_scr_ns_plogi(phba, vport);
795 } else if (vport->fc_flag & FC_VFI_REGISTERED)
796 lpfc_issue_init_vpi(vport);
798 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
799 "3135 Need register VFI: (x%x/%x)\n",
800 vport->fc_prevDID, vport->fc_myDID);
801 lpfc_issue_reg_vfi(vport);
808 * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
809 * @vport: pointer to a host virtual N_Port data structure.
810 * @ndlp: pointer to a node-list data structure.
811 * @sp: pointer to service parameter data structure.
813 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
814 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
815 * in a point-to-point topology. First, the @vport's N_Port Name is compared
816 * with the received N_Port Name: if the @vport's N_Port Name is greater than
817 * the received N_Port Name lexicographically, this node shall assign local
818 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
819 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
820 * this node shall just wait for the remote node to issue PLOGI and assign
828 lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
829 struct serv_parm *sp)
831 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
832 struct lpfc_hba *phba = vport->phba;
836 spin_lock_irq(shost->host_lock);
837 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
838 vport->fc_flag |= FC_PT2PT;
839 spin_unlock_irq(shost->host_lock);
841 /* If physical FC port changed, unreg VFI and ALL VPIs / RPIs */
842 if ((phba->sli_rev == LPFC_SLI_REV4) && phba->fc_topology_changed) {
843 lpfc_unregister_fcf_prep(phba);
845 spin_lock_irq(shost->host_lock);
846 vport->fc_flag &= ~FC_VFI_REGISTERED;
847 spin_unlock_irq(shost->host_lock);
848 phba->fc_topology_changed = 0;
851 rc = memcmp(&vport->fc_portname, &sp->portName,
852 sizeof(vport->fc_portname));
855 /* This side will initiate the PLOGI */
856 spin_lock_irq(shost->host_lock);
857 vport->fc_flag |= FC_PT2PT_PLOGI;
858 spin_unlock_irq(shost->host_lock);
861 * N_Port ID cannot be 0, set our Id to LocalID
862 * the other side will be RemoteID.
867 vport->fc_myDID = PT2PT_LocalID;
869 /* Decrement ndlp reference count indicating that ndlp can be
870 * safely released when other references to it are done.
874 ndlp = lpfc_findnode_did(vport, PT2PT_RemoteID);
877 * Cannot find existing Fabric ndlp, so allocate a
880 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
883 lpfc_nlp_init(vport, ndlp, PT2PT_RemoteID);
884 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
885 ndlp = lpfc_enable_node(vport, ndlp,
886 NLP_STE_UNUSED_NODE);
891 memcpy(&ndlp->nlp_portname, &sp->portName,
892 sizeof(struct lpfc_name));
893 memcpy(&ndlp->nlp_nodename, &sp->nodeName,
894 sizeof(struct lpfc_name));
895 /* Set state will put ndlp onto node list if not already done */
896 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
897 spin_lock_irq(shost->host_lock);
898 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
899 spin_unlock_irq(shost->host_lock);
901 /* This side will wait for the PLOGI, decrement ndlp reference
902 * count indicating that ndlp can be released when other
903 * references to it are done.
907 /* If we are pt2pt with another NPort, force NPIV off! */
908 phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
910 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
914 lpfc_config_link(phba, mbox);
916 mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
918 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
919 if (rc == MBX_NOT_FINISHED) {
920 mempool_free(mbox, phba->mbox_mem_pool);
930 * lpfc_cmpl_els_flogi - Completion callback function for flogi
931 * @phba: pointer to lpfc hba data structure.
932 * @cmdiocb: pointer to lpfc command iocb data structure.
933 * @rspiocb: pointer to lpfc response iocb data structure.
935 * This routine is the top-level completion callback function for issuing
936 * a Fabric Login (FLOGI) command. If the response IOCB reported error,
937 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
938 * retry has been made (either immediately or delayed with lpfc_els_retry()
939 * returning 1), the command IOCB will be released and function returned.
940 * If the retry attempt has been given up (possibly reach the maximum
941 * number of retries), one additional decrement of ndlp reference shall be
942 * invoked before going out after releasing the command IOCB. This will
943 * actually release the remote node (Note, lpfc_els_free_iocb() will also
944 * invoke one decrement of ndlp reference count). If no error reported in
945 * the IOCB status, the command Port ID field is used to determine whether
946 * this is a point-to-point topology or a fabric topology: if the Port ID
947 * field is assigned, it is a fabric topology; otherwise, it is a
948 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
949 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
950 * specific topology completion conditions.
953 lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
954 struct lpfc_iocbq *rspiocb)
956 struct lpfc_vport *vport = cmdiocb->vport;
957 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
958 IOCB_t *irsp = &rspiocb->iocb;
959 struct lpfc_nodelist *ndlp = cmdiocb->context1;
960 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
961 struct serv_parm *sp;
965 /* Check to see if link went down during discovery */
966 if (lpfc_els_chk_latt(vport)) {
967 /* One additional decrement on node reference count to
968 * trigger the release of the node
974 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
975 "FLOGI cmpl: status:x%x/x%x state:x%x",
976 irsp->ulpStatus, irsp->un.ulpWord[4],
979 if (irsp->ulpStatus) {
981 * In case of FIP mode, perform roundrobin FCF failover
982 * due to new FCF discovery
984 if ((phba->hba_flag & HBA_FIP_SUPPORT) &&
985 (phba->fcf.fcf_flag & FCF_DISCOVERY)) {
986 if (phba->link_state < LPFC_LINK_UP)
987 goto stop_rr_fcf_flogi;
988 if ((phba->fcoe_cvl_eventtag_attn ==
989 phba->fcoe_cvl_eventtag) &&
990 (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
991 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
993 goto stop_rr_fcf_flogi;
995 phba->fcoe_cvl_eventtag_attn =
996 phba->fcoe_cvl_eventtag;
997 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | LOG_ELS,
998 "2611 FLOGI failed on FCF (x%x), "
999 "status:x%x/x%x, tmo:x%x, perform "
1000 "roundrobin FCF failover\n",
1001 phba->fcf.current_rec.fcf_indx,
1002 irsp->ulpStatus, irsp->un.ulpWord[4],
1004 lpfc_sli4_set_fcf_flogi_fail(phba,
1005 phba->fcf.current_rec.fcf_indx);
1006 fcf_index = lpfc_sli4_fcf_rr_next_index_get(phba);
1007 rc = lpfc_sli4_fcf_rr_next_proc(vport, fcf_index);
1014 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1015 "2858 FLOGI failure Status:x%x/x%x TMO:x%x "
1017 irsp->ulpStatus, irsp->un.ulpWord[4],
1018 irsp->ulpTimeout, phba->hba_flag,
1019 phba->fcf.fcf_flag);
1021 /* Check for retry */
1022 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
1026 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1027 "0100 FLOGI failure Status:x%x/x%x TMO:x%x\n",
1028 irsp->ulpStatus, irsp->un.ulpWord[4],
1031 /* FLOGI failed, so there is no fabric */
1032 spin_lock_irq(shost->host_lock);
1033 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1034 spin_unlock_irq(shost->host_lock);
1036 /* If private loop, then allow max outstanding els to be
1037 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
1038 * alpa map would take too long otherwise.
1040 if (phba->alpa_map[0] == 0)
1041 vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS;
1042 if ((phba->sli_rev == LPFC_SLI_REV4) &&
1043 (!(vport->fc_flag & FC_VFI_REGISTERED) ||
1044 (vport->fc_prevDID != vport->fc_myDID) ||
1045 phba->fc_topology_changed)) {
1046 if (vport->fc_flag & FC_VFI_REGISTERED) {
1047 if (phba->fc_topology_changed) {
1048 lpfc_unregister_fcf_prep(phba);
1049 spin_lock_irq(shost->host_lock);
1050 vport->fc_flag &= ~FC_VFI_REGISTERED;
1051 spin_unlock_irq(shost->host_lock);
1052 phba->fc_topology_changed = 0;
1054 lpfc_sli4_unreg_all_rpis(vport);
1058 /* Do not register VFI if the driver aborted FLOGI */
1059 if (!lpfc_error_lost_link(irsp))
1060 lpfc_issue_reg_vfi(vport);
1066 spin_lock_irq(shost->host_lock);
1067 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
1068 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
1069 spin_unlock_irq(shost->host_lock);
1072 * The FLogI succeeded. Sync the data for the CPU before
1075 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
1078 sp = prsp->virt + sizeof(uint32_t);
1080 /* FLOGI completes successfully */
1081 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1082 "0101 FLOGI completes successfully, I/O tag:x%x, "
1083 "Data: x%x x%x x%x x%x x%x x%x\n", cmdiocb->iotag,
1084 irsp->un.ulpWord[4], sp->cmn.e_d_tov,
1085 sp->cmn.w2.r_a_tov, sp->cmn.edtovResolution,
1086 vport->port_state, vport->fc_flag);
1088 if (vport->port_state == LPFC_FLOGI) {
1090 * If Common Service Parameters indicate Nport
1091 * we are point to point, if Fport we are Fabric.
1094 rc = lpfc_cmpl_els_flogi_fabric(vport, ndlp, sp, irsp);
1095 else if (!(phba->hba_flag & HBA_FCOE_MODE))
1096 rc = lpfc_cmpl_els_flogi_nport(vport, ndlp, sp);
1098 lpfc_printf_vlog(vport, KERN_ERR,
1100 "2831 FLOGI response with cleared Fabric "
1101 "bit fcf_index 0x%x "
1102 "Switch Name %02x%02x%02x%02x%02x%02x%02x%02x "
1104 "%02x%02x%02x%02x%02x%02x%02x%02x\n",
1105 phba->fcf.current_rec.fcf_indx,
1106 phba->fcf.current_rec.switch_name[0],
1107 phba->fcf.current_rec.switch_name[1],
1108 phba->fcf.current_rec.switch_name[2],
1109 phba->fcf.current_rec.switch_name[3],
1110 phba->fcf.current_rec.switch_name[4],
1111 phba->fcf.current_rec.switch_name[5],
1112 phba->fcf.current_rec.switch_name[6],
1113 phba->fcf.current_rec.switch_name[7],
1114 phba->fcf.current_rec.fabric_name[0],
1115 phba->fcf.current_rec.fabric_name[1],
1116 phba->fcf.current_rec.fabric_name[2],
1117 phba->fcf.current_rec.fabric_name[3],
1118 phba->fcf.current_rec.fabric_name[4],
1119 phba->fcf.current_rec.fabric_name[5],
1120 phba->fcf.current_rec.fabric_name[6],
1121 phba->fcf.current_rec.fabric_name[7]);
1123 spin_lock_irq(&phba->hbalock);
1124 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1125 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1126 spin_unlock_irq(&phba->hbalock);
1127 phba->fcf.fcf_redisc_attempted = 0; /* reset */
1131 /* Mark the FCF discovery process done */
1132 if (phba->hba_flag & HBA_FIP_SUPPORT)
1133 lpfc_printf_vlog(vport, KERN_INFO, LOG_FIP |
1135 "2769 FLOGI to FCF (x%x) "
1136 "completed successfully\n",
1137 phba->fcf.current_rec.fcf_indx);
1138 spin_lock_irq(&phba->hbalock);
1139 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1140 phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
1141 spin_unlock_irq(&phba->hbalock);
1142 phba->fcf.fcf_redisc_attempted = 0; /* reset */
1145 } else if (vport->port_state > LPFC_FLOGI &&
1146 vport->fc_flag & FC_PT2PT) {
1148 * In a p2p topology, it is possible that discovery has
1149 * already progressed, and this completion can be ignored.
1150 * Recheck the indicated topology.
1157 spin_lock_irq(&phba->hbalock);
1158 phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
1159 spin_unlock_irq(&phba->hbalock);
1163 if (!lpfc_error_lost_link(irsp)) {
1164 /* FLOGI failed, so just use loop map to make discovery list */
1165 lpfc_disc_list_loopmap(vport);
1167 /* Start discovery */
1168 lpfc_disc_start(vport);
1169 } else if (((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
1170 (((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1171 IOERR_SLI_ABORTED) &&
1172 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
1173 IOERR_SLI_DOWN))) &&
1174 (phba->link_state != LPFC_CLEAR_LA)) {
1175 /* If FLOGI failed enable link interrupt. */
1176 lpfc_issue_clear_la(phba, vport);
1179 lpfc_els_free_iocb(phba, cmdiocb);
1183 * lpfc_issue_els_flogi - Issue an flogi iocb command for a vport
1184 * @vport: pointer to a host virtual N_Port data structure.
1185 * @ndlp: pointer to a node-list data structure.
1186 * @retry: number of retries to the command IOCB.
1188 * This routine issues a Fabric Login (FLOGI) Request ELS command
1189 * for a @vport. The initiator service parameters are put into the payload
1190 * of the FLOGI Request IOCB and the top-level callback function pointer
1191 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
1192 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
1193 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
1195 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1196 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1197 * will be stored into the context1 field of the IOCB for the completion
1198 * callback function to the FLOGI ELS command.
1201 * 0 - successfully issued flogi iocb for @vport
1202 * 1 - failed to issue flogi iocb for @vport
1205 lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1208 struct lpfc_hba *phba = vport->phba;
1209 struct serv_parm *sp;
1211 struct lpfc_iocbq *elsiocb;
1217 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
1218 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
1219 ndlp->nlp_DID, ELS_CMD_FLOGI);
1224 icmd = &elsiocb->iocb;
1225 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1227 /* For FLOGI request, remainder of payload is service parameters */
1228 *((uint32_t *) (pcmd)) = ELS_CMD_FLOGI;
1229 pcmd += sizeof(uint32_t);
1230 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
1231 sp = (struct serv_parm *) pcmd;
1233 /* Setup CSPs accordingly for Fabric */
1234 sp->cmn.e_d_tov = 0;
1235 sp->cmn.w2.r_a_tov = 0;
1236 sp->cmn.virtual_fabric_support = 0;
1237 sp->cls1.classValid = 0;
1238 if (sp->cmn.fcphLow < FC_PH3)
1239 sp->cmn.fcphLow = FC_PH3;
1240 if (sp->cmn.fcphHigh < FC_PH3)
1241 sp->cmn.fcphHigh = FC_PH3;
1243 if (phba->sli_rev == LPFC_SLI_REV4) {
1244 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1245 LPFC_SLI_INTF_IF_TYPE_0) {
1246 elsiocb->iocb.ulpCt_h = ((SLI4_CT_FCFI >> 1) & 1);
1247 elsiocb->iocb.ulpCt_l = (SLI4_CT_FCFI & 1);
1248 /* FLOGI needs to be 3 for WQE FCFI */
1249 /* Set the fcfi to the fcfi we registered with */
1250 elsiocb->iocb.ulpContext = phba->fcf.fcfi;
1252 /* Can't do SLI4 class2 without support sequence coalescing */
1253 sp->cls2.classValid = 0;
1254 sp->cls2.seqDelivery = 0;
1256 /* Historical, setting sequential-delivery bit for SLI3 */
1257 sp->cls2.seqDelivery = (sp->cls2.classValid) ? 1 : 0;
1258 sp->cls3.seqDelivery = (sp->cls3.classValid) ? 1 : 0;
1259 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
1260 sp->cmn.request_multiple_Nport = 1;
1261 /* For FLOGI, Let FLOGI rsp set the NPortID for VPI 0 */
1265 sp->cmn.request_multiple_Nport = 0;
1268 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP) {
1269 icmd->un.elsreq64.myID = 0;
1270 icmd->un.elsreq64.fl = 1;
1273 tmo = phba->fc_ratov;
1274 phba->fc_ratov = LPFC_DISC_FLOGI_TMO;
1275 lpfc_set_disctmo(vport);
1276 phba->fc_ratov = tmo;
1278 phba->fc_stat.elsXmitFLOGI++;
1279 elsiocb->iocb_cmpl = lpfc_cmpl_els_flogi;
1281 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1282 "Issue FLOGI: opt:x%x",
1283 phba->sli3_options, 0, 0);
1285 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
1286 if (rc == IOCB_ERROR) {
1287 lpfc_els_free_iocb(phba, elsiocb);
1294 * lpfc_els_abort_flogi - Abort all outstanding flogi iocbs
1295 * @phba: pointer to lpfc hba data structure.
1297 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
1298 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
1299 * list and issues an abort IOCB commond on each outstanding IOCB that
1300 * contains a active Fabric_DID ndlp. Note that this function is to issue
1301 * the abort IOCB command on all the outstanding IOCBs, thus when this
1302 * function returns, it does not guarantee all the IOCBs are actually aborted.
1305 * 0 - Successfully issued abort iocb on all outstanding flogis (Always 0)
1308 lpfc_els_abort_flogi(struct lpfc_hba *phba)
1310 struct lpfc_sli_ring *pring;
1311 struct lpfc_iocbq *iocb, *next_iocb;
1312 struct lpfc_nodelist *ndlp;
1315 /* Abort outstanding I/O on NPort <nlp_DID> */
1316 lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
1317 "0201 Abort outstanding I/O on NPort x%x\n",
1320 pring = &phba->sli.ring[LPFC_ELS_RING];
1323 * Check the txcmplq for an iocb that matches the nport the driver is
1326 spin_lock_irq(&phba->hbalock);
1327 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
1329 if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
1330 ndlp = (struct lpfc_nodelist *)(iocb->context1);
1331 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
1332 (ndlp->nlp_DID == Fabric_DID))
1333 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
1336 spin_unlock_irq(&phba->hbalock);
1342 * lpfc_initial_flogi - Issue an initial fabric login for a vport
1343 * @vport: pointer to a host virtual N_Port data structure.
1345 * This routine issues an initial Fabric Login (FLOGI) for the @vport
1346 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1347 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1348 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1349 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
1350 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
1354 * 0 - failed to issue initial flogi for @vport
1355 * 1 - successfully issued initial flogi for @vport
1358 lpfc_initial_flogi(struct lpfc_vport *vport)
1360 struct lpfc_hba *phba = vport->phba;
1361 struct lpfc_nodelist *ndlp;
1363 vport->port_state = LPFC_FLOGI;
1364 lpfc_set_disctmo(vport);
1366 /* First look for the Fabric ndlp */
1367 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1369 /* Cannot find existing Fabric ndlp, so allocate a new one */
1370 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1373 lpfc_nlp_init(vport, ndlp, Fabric_DID);
1374 /* Set the node type */
1375 ndlp->nlp_type |= NLP_FABRIC;
1376 /* Put ndlp onto node list */
1377 lpfc_enqueue_node(vport, ndlp);
1378 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
1379 /* re-setup ndlp without removing from node list */
1380 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
1385 if (lpfc_issue_els_flogi(vport, ndlp, 0)) {
1386 /* This decrement of reference count to node shall kick off
1387 * the release of the node.
1396 * lpfc_initial_fdisc - Issue an initial fabric discovery for a vport
1397 * @vport: pointer to a host virtual N_Port data structure.
1399 * This routine issues an initial Fabric Discover (FDISC) for the @vport
1400 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
1401 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
1402 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
1403 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
1404 * is then invoked with the @vport and the ndlp to perform the FDISC for the
1408 * 0 - failed to issue initial fdisc for @vport
1409 * 1 - successfully issued initial fdisc for @vport
1412 lpfc_initial_fdisc(struct lpfc_vport *vport)
1414 struct lpfc_hba *phba = vport->phba;
1415 struct lpfc_nodelist *ndlp;
1417 /* First look for the Fabric ndlp */
1418 ndlp = lpfc_findnode_did(vport, Fabric_DID);
1420 /* Cannot find existing Fabric ndlp, so allocate a new one */
1421 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
1424 lpfc_nlp_init(vport, ndlp, Fabric_DID);
1425 /* Put ndlp onto node list */
1426 lpfc_enqueue_node(vport, ndlp);
1427 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
1428 /* re-setup ndlp without removing from node list */
1429 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
1434 if (lpfc_issue_els_fdisc(vport, ndlp, 0)) {
1435 /* decrement node reference count to trigger the release of
1445 * lpfc_more_plogi - Check and issue remaining plogis for a vport
1446 * @vport: pointer to a host virtual N_Port data structure.
1448 * This routine checks whether there are more remaining Port Logins
1449 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1450 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1451 * to issue ELS PLOGIs up to the configured discover threads with the
1452 * @vport (@vport->cfg_discovery_threads). The function also decrement
1453 * the @vport's num_disc_node by 1 if it is not already 0.
1456 lpfc_more_plogi(struct lpfc_vport *vport)
1458 if (vport->num_disc_nodes)
1459 vport->num_disc_nodes--;
1461 /* Continue discovery with <num_disc_nodes> PLOGIs to go */
1462 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
1463 "0232 Continue discovery with %d PLOGIs to go "
1464 "Data: x%x x%x x%x\n",
1465 vport->num_disc_nodes, vport->fc_plogi_cnt,
1466 vport->fc_flag, vport->port_state);
1467 /* Check to see if there are more PLOGIs to be sent */
1468 if (vport->fc_flag & FC_NLP_MORE)
1469 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
1470 lpfc_els_disc_plogi(vport);
1476 * lpfc_plogi_confirm_nport - Confirm pologi wwpn matches stored ndlp
1477 * @phba: pointer to lpfc hba data structure.
1478 * @prsp: pointer to response IOCB payload.
1479 * @ndlp: pointer to a node-list data structure.
1481 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1482 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1483 * The following cases are considered N_Port confirmed:
1484 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1485 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1486 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1487 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1488 * 1) if there is a node on vport list other than the @ndlp with the same
1489 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1490 * on that node to release the RPI associated with the node; 2) if there is
1491 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1492 * into, a new node shall be allocated (or activated). In either case, the
1493 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1494 * be released and the new_ndlp shall be put on to the vport node list and
1495 * its pointer returned as the confirmed node.
1497 * Note that before the @ndlp got "released", the keepDID from not-matching
1498 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1499 * of the @ndlp. This is because the release of @ndlp is actually to put it
1500 * into an inactive state on the vport node list and the vport node list
1501 * management algorithm does not allow two node with a same DID.
1504 * pointer to the PLOGI N_Port @ndlp
1506 static struct lpfc_nodelist *
1507 lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
1508 struct lpfc_nodelist *ndlp)
1510 struct lpfc_vport *vport = ndlp->vport;
1511 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1512 struct lpfc_nodelist *new_ndlp;
1513 struct lpfc_rport_data *rdata;
1514 struct fc_rport *rport;
1515 struct serv_parm *sp;
1516 uint8_t name[sizeof(struct lpfc_name)];
1517 uint32_t rc, keepDID = 0, keep_nlp_flag = 0;
1518 uint16_t keep_nlp_state;
1521 unsigned long *active_rrqs_xri_bitmap = NULL;
1523 /* Fabric nodes can have the same WWPN so we don't bother searching
1524 * by WWPN. Just return the ndlp that was given to us.
1526 if (ndlp->nlp_type & NLP_FABRIC)
1529 sp = (struct serv_parm *) ((uint8_t *) prsp + sizeof(uint32_t));
1530 memset(name, 0, sizeof(struct lpfc_name));
1532 /* Now we find out if the NPort we are logging into, matches the WWPN
1533 * we have for that ndlp. If not, we have some work to do.
1535 new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
1537 if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp))
1539 if (phba->sli_rev == LPFC_SLI_REV4) {
1540 active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool,
1542 if (active_rrqs_xri_bitmap)
1543 memset(active_rrqs_xri_bitmap, 0,
1544 phba->cfg_rrq_xri_bitmap_sz);
1547 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1548 "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n",
1549 ndlp, ndlp->nlp_DID, new_ndlp);
1552 rc = memcmp(&ndlp->nlp_portname, name,
1553 sizeof(struct lpfc_name));
1555 if (active_rrqs_xri_bitmap)
1556 mempool_free(active_rrqs_xri_bitmap,
1557 phba->active_rrq_pool);
1560 new_ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_ATOMIC);
1562 if (active_rrqs_xri_bitmap)
1563 mempool_free(active_rrqs_xri_bitmap,
1564 phba->active_rrq_pool);
1567 lpfc_nlp_init(vport, new_ndlp, ndlp->nlp_DID);
1568 } else if (!NLP_CHK_NODE_ACT(new_ndlp)) {
1569 rc = memcmp(&ndlp->nlp_portname, name,
1570 sizeof(struct lpfc_name));
1572 if (active_rrqs_xri_bitmap)
1573 mempool_free(active_rrqs_xri_bitmap,
1574 phba->active_rrq_pool);
1577 new_ndlp = lpfc_enable_node(vport, new_ndlp,
1578 NLP_STE_UNUSED_NODE);
1580 if (active_rrqs_xri_bitmap)
1581 mempool_free(active_rrqs_xri_bitmap,
1582 phba->active_rrq_pool);
1585 keepDID = new_ndlp->nlp_DID;
1586 if ((phba->sli_rev == LPFC_SLI_REV4) && active_rrqs_xri_bitmap)
1587 memcpy(active_rrqs_xri_bitmap,
1588 new_ndlp->active_rrqs_xri_bitmap,
1589 phba->cfg_rrq_xri_bitmap_sz);
1591 keepDID = new_ndlp->nlp_DID;
1592 if (phba->sli_rev == LPFC_SLI_REV4 &&
1593 active_rrqs_xri_bitmap)
1594 memcpy(active_rrqs_xri_bitmap,
1595 new_ndlp->active_rrqs_xri_bitmap,
1596 phba->cfg_rrq_xri_bitmap_sz);
1599 lpfc_unreg_rpi(vport, new_ndlp);
1600 new_ndlp->nlp_DID = ndlp->nlp_DID;
1601 new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
1602 if (phba->sli_rev == LPFC_SLI_REV4)
1603 memcpy(new_ndlp->active_rrqs_xri_bitmap,
1604 ndlp->active_rrqs_xri_bitmap,
1605 phba->cfg_rrq_xri_bitmap_sz);
1607 spin_lock_irq(shost->host_lock);
1608 keep_nlp_flag = new_ndlp->nlp_flag;
1609 new_ndlp->nlp_flag = ndlp->nlp_flag;
1610 ndlp->nlp_flag = keep_nlp_flag;
1611 spin_unlock_irq(shost->host_lock);
1613 /* Set nlp_states accordingly */
1614 keep_nlp_state = new_ndlp->nlp_state;
1615 lpfc_nlp_set_state(vport, new_ndlp, ndlp->nlp_state);
1617 /* Move this back to NPR state */
1618 if (memcmp(&ndlp->nlp_portname, name, sizeof(struct lpfc_name)) == 0) {
1619 /* The new_ndlp is replacing ndlp totally, so we need
1620 * to put ndlp on UNUSED list and try to free it.
1622 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1623 "3179 PLOGI confirm NEW: %x %x\n",
1624 new_ndlp->nlp_DID, keepDID);
1626 /* Fix up the rport accordingly */
1627 rport = ndlp->rport;
1629 rdata = rport->dd_data;
1630 if (rdata->pnode == ndlp) {
1631 /* break the link before dropping the ref */
1634 rdata->pnode = lpfc_nlp_get(new_ndlp);
1635 new_ndlp->rport = rport;
1637 new_ndlp->nlp_type = ndlp->nlp_type;
1639 /* We shall actually free the ndlp with both nlp_DID and
1640 * nlp_portname fields equals 0 to avoid any ndlp on the
1641 * nodelist never to be used.
1643 if (ndlp->nlp_DID == 0) {
1644 spin_lock_irq(&phba->ndlp_lock);
1645 NLP_SET_FREE_REQ(ndlp);
1646 spin_unlock_irq(&phba->ndlp_lock);
1649 /* Two ndlps cannot have the same did on the nodelist */
1650 ndlp->nlp_DID = keepDID;
1651 if (phba->sli_rev == LPFC_SLI_REV4 &&
1652 active_rrqs_xri_bitmap)
1653 memcpy(ndlp->active_rrqs_xri_bitmap,
1654 active_rrqs_xri_bitmap,
1655 phba->cfg_rrq_xri_bitmap_sz);
1657 if (!NLP_CHK_NODE_ACT(ndlp))
1658 lpfc_drop_node(vport, ndlp);
1661 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1662 "3180 PLOGI confirm SWAP: %x %x\n",
1663 new_ndlp->nlp_DID, keepDID);
1665 lpfc_unreg_rpi(vport, ndlp);
1667 /* Two ndlps cannot have the same did */
1668 ndlp->nlp_DID = keepDID;
1669 if (phba->sli_rev == LPFC_SLI_REV4 &&
1670 active_rrqs_xri_bitmap)
1671 memcpy(ndlp->active_rrqs_xri_bitmap,
1672 active_rrqs_xri_bitmap,
1673 phba->cfg_rrq_xri_bitmap_sz);
1675 /* Since we are switching over to the new_ndlp,
1676 * reset the old ndlp state
1678 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
1679 (ndlp->nlp_state == NLP_STE_MAPPED_NODE))
1680 keep_nlp_state = NLP_STE_NPR_NODE;
1681 lpfc_nlp_set_state(vport, ndlp, keep_nlp_state);
1683 /* Fix up the rport accordingly */
1684 rport = ndlp->rport;
1686 rdata = rport->dd_data;
1687 put_node = rdata->pnode != NULL;
1688 put_rport = ndlp->rport != NULL;
1689 rdata->pnode = NULL;
1694 put_device(&rport->dev);
1697 if (phba->sli_rev == LPFC_SLI_REV4 &&
1698 active_rrqs_xri_bitmap)
1699 mempool_free(active_rrqs_xri_bitmap,
1700 phba->active_rrq_pool);
1705 * lpfc_end_rscn - Check and handle more rscn for a vport
1706 * @vport: pointer to a host virtual N_Port data structure.
1708 * This routine checks whether more Registration State Change
1709 * Notifications (RSCNs) came in while the discovery state machine was in
1710 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1711 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1712 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1713 * handling the RSCNs.
1716 lpfc_end_rscn(struct lpfc_vport *vport)
1718 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1720 if (vport->fc_flag & FC_RSCN_MODE) {
1722 * Check to see if more RSCNs came in while we were
1723 * processing this one.
1725 if (vport->fc_rscn_id_cnt ||
1726 (vport->fc_flag & FC_RSCN_DISCOVERY) != 0)
1727 lpfc_els_handle_rscn(vport);
1729 spin_lock_irq(shost->host_lock);
1730 vport->fc_flag &= ~FC_RSCN_MODE;
1731 spin_unlock_irq(shost->host_lock);
1737 * lpfc_cmpl_els_rrq - Completion handled for els RRQs.
1738 * @phba: pointer to lpfc hba data structure.
1739 * @cmdiocb: pointer to lpfc command iocb data structure.
1740 * @rspiocb: pointer to lpfc response iocb data structure.
1742 * This routine will call the clear rrq function to free the rrq and
1743 * clear the xri's bit in the ndlp's xri_bitmap. If the ndlp does not
1744 * exist then the clear_rrq is still called because the rrq needs to
1749 lpfc_cmpl_els_rrq(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1750 struct lpfc_iocbq *rspiocb)
1752 struct lpfc_vport *vport = cmdiocb->vport;
1754 struct lpfc_nodelist *ndlp;
1755 struct lpfc_node_rrq *rrq;
1757 /* we pass cmdiocb to state machine which needs rspiocb as well */
1758 rrq = cmdiocb->context_un.rrq;
1759 cmdiocb->context_un.rsp_iocb = rspiocb;
1761 irsp = &rspiocb->iocb;
1762 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1763 "RRQ cmpl: status:x%x/x%x did:x%x",
1764 irsp->ulpStatus, irsp->un.ulpWord[4],
1765 irsp->un.elsreq64.remoteID);
1767 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1768 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || ndlp != rrq->ndlp) {
1769 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1770 "2882 RRQ completes to NPort x%x "
1771 "with no ndlp. Data: x%x x%x x%x\n",
1772 irsp->un.elsreq64.remoteID,
1773 irsp->ulpStatus, irsp->un.ulpWord[4],
1778 /* rrq completes to NPort <nlp_DID> */
1779 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1780 "2880 RRQ completes to NPort x%x "
1781 "Data: x%x x%x x%x x%x x%x\n",
1782 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
1783 irsp->ulpTimeout, rrq->xritag, rrq->rxid);
1785 if (irsp->ulpStatus) {
1786 /* Check for retry */
1787 /* RRQ failed Don't print the vport to vport rjts */
1788 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1789 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1790 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1791 (phba)->pport->cfg_log_verbose & LOG_ELS)
1792 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1793 "2881 RRQ failure DID:%06X Status:x%x/x%x\n",
1794 ndlp->nlp_DID, irsp->ulpStatus,
1795 irsp->un.ulpWord[4]);
1799 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1800 lpfc_els_free_iocb(phba, cmdiocb);
1804 * lpfc_cmpl_els_plogi - Completion callback function for plogi
1805 * @phba: pointer to lpfc hba data structure.
1806 * @cmdiocb: pointer to lpfc command iocb data structure.
1807 * @rspiocb: pointer to lpfc response iocb data structure.
1809 * This routine is the completion callback function for issuing the Port
1810 * Login (PLOGI) command. For PLOGI completion, there must be an active
1811 * ndlp on the vport node list that matches the remote node ID from the
1812 * PLOGI response IOCB. If such ndlp does not exist, the PLOGI is simply
1813 * ignored and command IOCB released. The PLOGI response IOCB status is
1814 * checked for error conditons. If there is error status reported, PLOGI
1815 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1816 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1817 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1818 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1819 * there are additional N_Port nodes with the vport that need to perform
1820 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1824 lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1825 struct lpfc_iocbq *rspiocb)
1827 struct lpfc_vport *vport = cmdiocb->vport;
1828 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1830 struct lpfc_nodelist *ndlp;
1831 struct lpfc_dmabuf *prsp;
1834 /* we pass cmdiocb to state machine which needs rspiocb as well */
1835 cmdiocb->context_un.rsp_iocb = rspiocb;
1837 irsp = &rspiocb->iocb;
1838 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
1839 "PLOGI cmpl: status:x%x/x%x did:x%x",
1840 irsp->ulpStatus, irsp->un.ulpWord[4],
1841 irsp->un.elsreq64.remoteID);
1843 ndlp = lpfc_findnode_did(vport, irsp->un.elsreq64.remoteID);
1844 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
1845 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1846 "0136 PLOGI completes to NPort x%x "
1847 "with no ndlp. Data: x%x x%x x%x\n",
1848 irsp->un.elsreq64.remoteID,
1849 irsp->ulpStatus, irsp->un.ulpWord[4],
1854 /* Since ndlp can be freed in the disc state machine, note if this node
1855 * is being used during discovery.
1857 spin_lock_irq(shost->host_lock);
1858 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
1859 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1860 spin_unlock_irq(shost->host_lock);
1863 /* PLOGI completes to NPort <nlp_DID> */
1864 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
1865 "0102 PLOGI completes to NPort x%x "
1866 "Data: x%x x%x x%x x%x x%x\n",
1867 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
1868 irsp->ulpTimeout, disc, vport->num_disc_nodes);
1869 /* Check to see if link went down during discovery */
1870 if (lpfc_els_chk_latt(vport)) {
1871 spin_lock_irq(shost->host_lock);
1872 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1873 spin_unlock_irq(shost->host_lock);
1877 if (irsp->ulpStatus) {
1878 /* Check for retry */
1879 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
1880 /* ELS command is being retried */
1882 spin_lock_irq(shost->host_lock);
1883 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
1884 spin_unlock_irq(shost->host_lock);
1888 /* PLOGI failed Don't print the vport to vport rjts */
1889 if (irsp->ulpStatus != IOSTAT_LS_RJT ||
1890 (((irsp->un.ulpWord[4]) >> 16 != LSRJT_INVALID_CMD) &&
1891 ((irsp->un.ulpWord[4]) >> 16 != LSRJT_UNABLE_TPC)) ||
1892 (phba)->pport->cfg_log_verbose & LOG_ELS)
1893 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
1894 "2753 PLOGI failure DID:%06X Status:x%x/x%x\n",
1895 ndlp->nlp_DID, irsp->ulpStatus,
1896 irsp->un.ulpWord[4]);
1897 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
1898 if (lpfc_error_lost_link(irsp))
1899 rc = NLP_STE_FREED_NODE;
1901 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1902 NLP_EVT_CMPL_PLOGI);
1904 /* Good status, call state machine */
1905 prsp = list_entry(((struct lpfc_dmabuf *)
1906 cmdiocb->context2)->list.next,
1907 struct lpfc_dmabuf, list);
1908 ndlp = lpfc_plogi_confirm_nport(phba, prsp->virt, ndlp);
1909 rc = lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1910 NLP_EVT_CMPL_PLOGI);
1913 if (disc && vport->num_disc_nodes) {
1914 /* Check to see if there are more PLOGIs to be sent */
1915 lpfc_more_plogi(vport);
1917 if (vport->num_disc_nodes == 0) {
1918 spin_lock_irq(shost->host_lock);
1919 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1920 spin_unlock_irq(shost->host_lock);
1922 lpfc_can_disctmo(vport);
1923 lpfc_end_rscn(vport);
1928 lpfc_els_free_iocb(phba, cmdiocb);
1933 * lpfc_issue_els_plogi - Issue an plogi iocb command for a vport
1934 * @vport: pointer to a host virtual N_Port data structure.
1935 * @did: destination port identifier.
1936 * @retry: number of retries to the command IOCB.
1938 * This routine issues a Port Login (PLOGI) command to a remote N_Port
1939 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
1940 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
1941 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
1942 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
1944 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1945 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1946 * will be stored into the context1 field of the IOCB for the completion
1947 * callback function to the PLOGI ELS command.
1950 * 0 - Successfully issued a plogi for @vport
1951 * 1 - failed to issue a plogi for @vport
1954 lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
1956 struct lpfc_hba *phba = vport->phba;
1957 struct serv_parm *sp;
1958 struct lpfc_nodelist *ndlp;
1959 struct lpfc_iocbq *elsiocb;
1964 ndlp = lpfc_findnode_did(vport, did);
1965 if (ndlp && !NLP_CHK_NODE_ACT(ndlp))
1968 /* If ndlp is not NULL, we will bump the reference count on it */
1969 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
1970 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
1975 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
1977 /* For PLOGI request, remainder of payload is service parameters */
1978 *((uint32_t *) (pcmd)) = ELS_CMD_PLOGI;
1979 pcmd += sizeof(uint32_t);
1980 memcpy(pcmd, &vport->fc_sparam, sizeof(struct serv_parm));
1981 sp = (struct serv_parm *) pcmd;
1984 * If we are a N-port connected to a Fabric, fix-up paramm's so logins
1985 * to device on remote loops work.
1987 if ((vport->fc_flag & FC_FABRIC) && !(vport->fc_flag & FC_PUBLIC_LOOP))
1988 sp->cmn.altBbCredit = 1;
1990 if (sp->cmn.fcphLow < FC_PH_4_3)
1991 sp->cmn.fcphLow = FC_PH_4_3;
1993 if (sp->cmn.fcphHigh < FC_PH3)
1994 sp->cmn.fcphHigh = FC_PH3;
1996 sp->cmn.valid_vendor_ver_level = 0;
1997 memset(sp->vendorVersion, 0, sizeof(sp->vendorVersion));
1999 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2000 "Issue PLOGI: did:x%x",
2003 phba->fc_stat.elsXmitPLOGI++;
2004 elsiocb->iocb_cmpl = lpfc_cmpl_els_plogi;
2005 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2007 if (ret == IOCB_ERROR) {
2008 lpfc_els_free_iocb(phba, elsiocb);
2015 * lpfc_cmpl_els_prli - Completion callback function for prli
2016 * @phba: pointer to lpfc hba data structure.
2017 * @cmdiocb: pointer to lpfc command iocb data structure.
2018 * @rspiocb: pointer to lpfc response iocb data structure.
2020 * This routine is the completion callback function for a Process Login
2021 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
2022 * status. If there is error status reported, PRLI retry shall be attempted
2023 * by invoking the lpfc_els_retry() routine. Otherwise, the state
2024 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
2025 * ndlp to mark the PRLI completion.
2028 lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2029 struct lpfc_iocbq *rspiocb)
2031 struct lpfc_vport *vport = cmdiocb->vport;
2032 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2034 struct lpfc_nodelist *ndlp;
2036 /* we pass cmdiocb to state machine which needs rspiocb as well */
2037 cmdiocb->context_un.rsp_iocb = rspiocb;
2039 irsp = &(rspiocb->iocb);
2040 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2041 spin_lock_irq(shost->host_lock);
2042 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2043 spin_unlock_irq(shost->host_lock);
2045 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2046 "PRLI cmpl: status:x%x/x%x did:x%x",
2047 irsp->ulpStatus, irsp->un.ulpWord[4],
2049 /* PRLI completes to NPort <nlp_DID> */
2050 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2051 "0103 PRLI completes to NPort x%x "
2052 "Data: x%x x%x x%x x%x\n",
2053 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2054 irsp->ulpTimeout, vport->num_disc_nodes);
2056 vport->fc_prli_sent--;
2057 /* Check to see if link went down during discovery */
2058 if (lpfc_els_chk_latt(vport))
2061 if (irsp->ulpStatus) {
2062 /* Check for retry */
2063 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2064 /* ELS command is being retried */
2068 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2069 "2754 PRLI failure DID:%06X Status:x%x/x%x\n",
2070 ndlp->nlp_DID, irsp->ulpStatus,
2071 irsp->un.ulpWord[4]);
2072 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2073 if (lpfc_error_lost_link(irsp))
2076 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2079 /* Good status, call state machine */
2080 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2083 lpfc_els_free_iocb(phba, cmdiocb);
2088 * lpfc_issue_els_prli - Issue a prli iocb command for a vport
2089 * @vport: pointer to a host virtual N_Port data structure.
2090 * @ndlp: pointer to a node-list data structure.
2091 * @retry: number of retries to the command IOCB.
2093 * This routine issues a Process Login (PRLI) ELS command for the
2094 * @vport. The PRLI service parameters are set up in the payload of the
2095 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
2096 * is put to the IOCB completion callback func field before invoking the
2097 * routine lpfc_sli_issue_iocb() to send out PRLI command.
2099 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2100 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2101 * will be stored into the context1 field of the IOCB for the completion
2102 * callback function to the PRLI ELS command.
2105 * 0 - successfully issued prli iocb command for @vport
2106 * 1 - failed to issue prli iocb command for @vport
2109 lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2112 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2113 struct lpfc_hba *phba = vport->phba;
2115 struct lpfc_iocbq *elsiocb;
2119 cmdsize = (sizeof(uint32_t) + sizeof(PRLI));
2120 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2121 ndlp->nlp_DID, ELS_CMD_PRLI);
2125 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2127 /* For PRLI request, remainder of payload is service parameters */
2128 memset(pcmd, 0, (sizeof(PRLI) + sizeof(uint32_t)));
2129 *((uint32_t *) (pcmd)) = ELS_CMD_PRLI;
2130 pcmd += sizeof(uint32_t);
2132 /* For PRLI, remainder of payload is PRLI parameter page */
2133 npr = (PRLI *) pcmd;
2135 * If our firmware version is 3.20 or later,
2136 * set the following bits for FC-TAPE support.
2138 if (phba->vpd.rev.feaLevelHigh >= 0x02) {
2139 npr->ConfmComplAllowed = 1;
2141 npr->TaskRetryIdReq = 1;
2143 npr->estabImagePair = 1;
2144 npr->readXferRdyDis = 1;
2145 if (vport->cfg_first_burst_size)
2146 npr->writeXferRdyDis = 1;
2148 /* For FCP support */
2149 npr->prliType = PRLI_FCP_TYPE;
2150 npr->initiatorFunc = 1;
2152 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2153 "Issue PRLI: did:x%x",
2154 ndlp->nlp_DID, 0, 0);
2156 phba->fc_stat.elsXmitPRLI++;
2157 elsiocb->iocb_cmpl = lpfc_cmpl_els_prli;
2158 spin_lock_irq(shost->host_lock);
2159 ndlp->nlp_flag |= NLP_PRLI_SND;
2160 spin_unlock_irq(shost->host_lock);
2161 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2163 spin_lock_irq(shost->host_lock);
2164 ndlp->nlp_flag &= ~NLP_PRLI_SND;
2165 spin_unlock_irq(shost->host_lock);
2166 lpfc_els_free_iocb(phba, elsiocb);
2169 vport->fc_prli_sent++;
2174 * lpfc_rscn_disc - Perform rscn discovery for a vport
2175 * @vport: pointer to a host virtual N_Port data structure.
2177 * This routine performs Registration State Change Notification (RSCN)
2178 * discovery for a @vport. If the @vport's node port recovery count is not
2179 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
2180 * the nodes that need recovery. If none of the PLOGI were needed through
2181 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
2182 * invoked to check and handle possible more RSCN came in during the period
2183 * of processing the current ones.
2186 lpfc_rscn_disc(struct lpfc_vport *vport)
2188 lpfc_can_disctmo(vport);
2190 /* RSCN discovery */
2191 /* go thru NPR nodes and issue ELS PLOGIs */
2192 if (vport->fc_npr_cnt)
2193 if (lpfc_els_disc_plogi(vport))
2196 lpfc_end_rscn(vport);
2200 * lpfc_adisc_done - Complete the adisc phase of discovery
2201 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
2203 * This function is called when the final ADISC is completed during discovery.
2204 * This function handles clearing link attention or issuing reg_vpi depending
2205 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
2207 * This function is called with no locks held.
2210 lpfc_adisc_done(struct lpfc_vport *vport)
2212 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2213 struct lpfc_hba *phba = vport->phba;
2216 * For NPIV, cmpl_reg_vpi will set port_state to READY,
2217 * and continue discovery.
2219 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
2220 !(vport->fc_flag & FC_RSCN_MODE) &&
2221 (phba->sli_rev < LPFC_SLI_REV4)) {
2222 /* The ADISCs are complete. Doesn't matter if they
2223 * succeeded or failed because the ADISC completion
2224 * routine guarantees to call the state machine and
2225 * the RPI is either unregistered (failed ADISC response)
2226 * or the RPI is still valid and the node is marked
2227 * mapped for a target. The exchanges should be in the
2228 * correct state. This code is specific to SLI3.
2230 lpfc_issue_clear_la(phba, vport);
2231 lpfc_issue_reg_vpi(phba, vport);
2235 * For SLI2, we need to set port_state to READY
2236 * and continue discovery.
2238 if (vport->port_state < LPFC_VPORT_READY) {
2239 /* If we get here, there is nothing to ADISC */
2240 lpfc_issue_clear_la(phba, vport);
2241 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
2242 vport->num_disc_nodes = 0;
2243 /* go thru NPR list, issue ELS PLOGIs */
2244 if (vport->fc_npr_cnt)
2245 lpfc_els_disc_plogi(vport);
2246 if (!vport->num_disc_nodes) {
2247 spin_lock_irq(shost->host_lock);
2248 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2249 spin_unlock_irq(shost->host_lock);
2250 lpfc_can_disctmo(vport);
2251 lpfc_end_rscn(vport);
2254 vport->port_state = LPFC_VPORT_READY;
2256 lpfc_rscn_disc(vport);
2260 * lpfc_more_adisc - Issue more adisc as needed
2261 * @vport: pointer to a host virtual N_Port data structure.
2263 * This routine determines whether there are more ndlps on a @vport
2264 * node list need to have Address Discover (ADISC) issued. If so, it will
2265 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
2266 * remaining nodes which need to have ADISC sent.
2269 lpfc_more_adisc(struct lpfc_vport *vport)
2271 if (vport->num_disc_nodes)
2272 vport->num_disc_nodes--;
2273 /* Continue discovery with <num_disc_nodes> ADISCs to go */
2274 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2275 "0210 Continue discovery with %d ADISCs to go "
2276 "Data: x%x x%x x%x\n",
2277 vport->num_disc_nodes, vport->fc_adisc_cnt,
2278 vport->fc_flag, vport->port_state);
2279 /* Check to see if there are more ADISCs to be sent */
2280 if (vport->fc_flag & FC_NLP_MORE) {
2281 lpfc_set_disctmo(vport);
2282 /* go thru NPR nodes and issue any remaining ELS ADISCs */
2283 lpfc_els_disc_adisc(vport);
2285 if (!vport->num_disc_nodes)
2286 lpfc_adisc_done(vport);
2291 * lpfc_cmpl_els_adisc - Completion callback function for adisc
2292 * @phba: pointer to lpfc hba data structure.
2293 * @cmdiocb: pointer to lpfc command iocb data structure.
2294 * @rspiocb: pointer to lpfc response iocb data structure.
2296 * This routine is the completion function for issuing the Address Discover
2297 * (ADISC) command. It first checks to see whether link went down during
2298 * the discovery process. If so, the node will be marked as node port
2299 * recovery for issuing discover IOCB by the link attention handler and
2300 * exit. Otherwise, the response status is checked. If error was reported
2301 * in the response status, the ADISC command shall be retried by invoking
2302 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
2303 * the response status, the state machine is invoked to set transition
2304 * with respect to NLP_EVT_CMPL_ADISC event.
2307 lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2308 struct lpfc_iocbq *rspiocb)
2310 struct lpfc_vport *vport = cmdiocb->vport;
2311 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2313 struct lpfc_nodelist *ndlp;
2316 /* we pass cmdiocb to state machine which needs rspiocb as well */
2317 cmdiocb->context_un.rsp_iocb = rspiocb;
2319 irsp = &(rspiocb->iocb);
2320 ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2322 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2323 "ADISC cmpl: status:x%x/x%x did:x%x",
2324 irsp->ulpStatus, irsp->un.ulpWord[4],
2327 /* Since ndlp can be freed in the disc state machine, note if this node
2328 * is being used during discovery.
2330 spin_lock_irq(shost->host_lock);
2331 disc = (ndlp->nlp_flag & NLP_NPR_2B_DISC);
2332 ndlp->nlp_flag &= ~(NLP_ADISC_SND | NLP_NPR_2B_DISC);
2333 spin_unlock_irq(shost->host_lock);
2334 /* ADISC completes to NPort <nlp_DID> */
2335 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2336 "0104 ADISC completes to NPort x%x "
2337 "Data: x%x x%x x%x x%x x%x\n",
2338 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2339 irsp->ulpTimeout, disc, vport->num_disc_nodes);
2340 /* Check to see if link went down during discovery */
2341 if (lpfc_els_chk_latt(vport)) {
2342 spin_lock_irq(shost->host_lock);
2343 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2344 spin_unlock_irq(shost->host_lock);
2348 if (irsp->ulpStatus) {
2349 /* Check for retry */
2350 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2351 /* ELS command is being retried */
2353 spin_lock_irq(shost->host_lock);
2354 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2355 spin_unlock_irq(shost->host_lock);
2356 lpfc_set_disctmo(vport);
2361 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2362 "2755 ADISC failure DID:%06X Status:x%x/x%x\n",
2363 ndlp->nlp_DID, irsp->ulpStatus,
2364 irsp->un.ulpWord[4]);
2365 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2366 if (!lpfc_error_lost_link(irsp))
2367 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2368 NLP_EVT_CMPL_ADISC);
2370 /* Good status, call state machine */
2371 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2372 NLP_EVT_CMPL_ADISC);
2374 /* Check to see if there are more ADISCs to be sent */
2375 if (disc && vport->num_disc_nodes)
2376 lpfc_more_adisc(vport);
2378 lpfc_els_free_iocb(phba, cmdiocb);
2383 * lpfc_issue_els_adisc - Issue an address discover iocb to an node on a vport
2384 * @vport: pointer to a virtual N_Port data structure.
2385 * @ndlp: pointer to a node-list data structure.
2386 * @retry: number of retries to the command IOCB.
2388 * This routine issues an Address Discover (ADISC) for an @ndlp on a
2389 * @vport. It prepares the payload of the ADISC ELS command, updates the
2390 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
2391 * to issue the ADISC ELS command.
2393 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2394 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2395 * will be stored into the context1 field of the IOCB for the completion
2396 * callback function to the ADISC ELS command.
2399 * 0 - successfully issued adisc
2400 * 1 - failed to issue adisc
2403 lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2406 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2407 struct lpfc_hba *phba = vport->phba;
2409 struct lpfc_iocbq *elsiocb;
2413 cmdsize = (sizeof(uint32_t) + sizeof(ADISC));
2414 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2415 ndlp->nlp_DID, ELS_CMD_ADISC);
2419 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2421 /* For ADISC request, remainder of payload is service parameters */
2422 *((uint32_t *) (pcmd)) = ELS_CMD_ADISC;
2423 pcmd += sizeof(uint32_t);
2425 /* Fill in ADISC payload */
2426 ap = (ADISC *) pcmd;
2427 ap->hardAL_PA = phba->fc_pref_ALPA;
2428 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
2429 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2430 ap->DID = be32_to_cpu(vport->fc_myDID);
2432 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2433 "Issue ADISC: did:x%x",
2434 ndlp->nlp_DID, 0, 0);
2436 phba->fc_stat.elsXmitADISC++;
2437 elsiocb->iocb_cmpl = lpfc_cmpl_els_adisc;
2438 spin_lock_irq(shost->host_lock);
2439 ndlp->nlp_flag |= NLP_ADISC_SND;
2440 spin_unlock_irq(shost->host_lock);
2441 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2443 spin_lock_irq(shost->host_lock);
2444 ndlp->nlp_flag &= ~NLP_ADISC_SND;
2445 spin_unlock_irq(shost->host_lock);
2446 lpfc_els_free_iocb(phba, elsiocb);
2453 * lpfc_cmpl_els_logo - Completion callback function for logo
2454 * @phba: pointer to lpfc hba data structure.
2455 * @cmdiocb: pointer to lpfc command iocb data structure.
2456 * @rspiocb: pointer to lpfc response iocb data structure.
2458 * This routine is the completion function for issuing the ELS Logout (LOGO)
2459 * command. If no error status was reported from the LOGO response, the
2460 * state machine of the associated ndlp shall be invoked for transition with
2461 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
2462 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
2465 lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2466 struct lpfc_iocbq *rspiocb)
2468 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
2469 struct lpfc_vport *vport = ndlp->vport;
2470 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2472 struct lpfcMboxq *mbox;
2473 unsigned long flags;
2474 uint32_t skip_recovery = 0;
2476 /* we pass cmdiocb to state machine which needs rspiocb as well */
2477 cmdiocb->context_un.rsp_iocb = rspiocb;
2479 irsp = &(rspiocb->iocb);
2480 spin_lock_irq(shost->host_lock);
2481 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2482 spin_unlock_irq(shost->host_lock);
2484 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2485 "LOGO cmpl: status:x%x/x%x did:x%x",
2486 irsp->ulpStatus, irsp->un.ulpWord[4],
2489 /* LOGO completes to NPort <nlp_DID> */
2490 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2491 "0105 LOGO completes to NPort x%x "
2492 "Data: x%x x%x x%x x%x\n",
2493 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
2494 irsp->ulpTimeout, vport->num_disc_nodes);
2496 if (lpfc_els_chk_latt(vport)) {
2501 /* Check to see if link went down during discovery */
2502 if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
2503 /* NLP_EVT_DEVICE_RM should unregister the RPI
2504 * which should abort all outstanding IOs.
2506 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
2512 if (irsp->ulpStatus) {
2513 /* Check for retry */
2514 if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
2515 /* ELS command is being retried */
2520 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2521 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
2522 ndlp->nlp_DID, irsp->ulpStatus,
2523 irsp->un.ulpWord[4]);
2524 /* Do not call DSM for lpfc_els_abort'ed ELS cmds */
2525 if (lpfc_error_lost_link(irsp)) {
2531 /* Call state machine. This will unregister the rpi if needed. */
2532 lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
2535 lpfc_els_free_iocb(phba, cmdiocb);
2536 /* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
2537 if ((vport->fc_flag & FC_PT2PT) &&
2538 !(vport->fc_flag & FC_PT2PT_PLOGI)) {
2539 phba->pport->fc_myDID = 0;
2540 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2542 lpfc_config_link(phba, mbox);
2543 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2544 mbox->vport = vport;
2545 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
2547 mempool_free(mbox, phba->mbox_mem_pool);
2554 * If the node is a target, the handling attempts to recover the port.
2555 * For any other port type, the rpi is unregistered as an implicit
2558 if ((ndlp->nlp_type & NLP_FCP_TARGET) && (skip_recovery == 0)) {
2559 lpfc_cancel_retry_delay_tmo(vport, ndlp);
2560 spin_lock_irqsave(shost->host_lock, flags);
2561 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
2562 spin_unlock_irqrestore(shost->host_lock, flags);
2564 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2565 "3187 LOGO completes to NPort x%x: Start "
2566 "Recovery Data: x%x x%x x%x x%x\n",
2567 ndlp->nlp_DID, irsp->ulpStatus,
2568 irsp->un.ulpWord[4], irsp->ulpTimeout,
2569 vport->num_disc_nodes);
2570 lpfc_disc_start(vport);
2576 * lpfc_issue_els_logo - Issue a logo to an node on a vport
2577 * @vport: pointer to a virtual N_Port data structure.
2578 * @ndlp: pointer to a node-list data structure.
2579 * @retry: number of retries to the command IOCB.
2581 * This routine constructs and issues an ELS Logout (LOGO) iocb command
2582 * to a remote node, referred by an @ndlp on a @vport. It constructs the
2583 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
2584 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
2586 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2587 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2588 * will be stored into the context1 field of the IOCB for the completion
2589 * callback function to the LOGO ELS command.
2592 * 0 - successfully issued logo
2593 * 1 - failed to issue logo
2596 lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2599 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2600 struct lpfc_hba *phba = vport->phba;
2601 struct lpfc_iocbq *elsiocb;
2606 spin_lock_irq(shost->host_lock);
2607 if (ndlp->nlp_flag & NLP_LOGO_SND) {
2608 spin_unlock_irq(shost->host_lock);
2611 spin_unlock_irq(shost->host_lock);
2613 cmdsize = (2 * sizeof(uint32_t)) + sizeof(struct lpfc_name);
2614 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2615 ndlp->nlp_DID, ELS_CMD_LOGO);
2619 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2620 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
2621 pcmd += sizeof(uint32_t);
2623 /* Fill in LOGO payload */
2624 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
2625 pcmd += sizeof(uint32_t);
2626 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
2628 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2629 "Issue LOGO: did:x%x",
2630 ndlp->nlp_DID, 0, 0);
2633 * If we are issuing a LOGO, we may try to recover the remote NPort
2634 * by issuing a PLOGI later. Even though we issue ELS cmds by the
2635 * VPI, if we have a valid RPI, and that RPI gets unreg'ed while
2636 * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
2637 * for that ELS cmd. To avoid this situation, lets get rid of the
2638 * RPI right now, before any ELS cmds are sent.
2640 spin_lock_irq(shost->host_lock);
2641 ndlp->nlp_flag |= NLP_ISSUE_LOGO;
2642 spin_unlock_irq(shost->host_lock);
2643 if (lpfc_unreg_rpi(vport, ndlp)) {
2644 lpfc_els_free_iocb(phba, elsiocb);
2648 phba->fc_stat.elsXmitLOGO++;
2649 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
2650 spin_lock_irq(shost->host_lock);
2651 ndlp->nlp_flag |= NLP_LOGO_SND;
2652 ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
2653 spin_unlock_irq(shost->host_lock);
2654 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
2656 if (rc == IOCB_ERROR) {
2657 spin_lock_irq(shost->host_lock);
2658 ndlp->nlp_flag &= ~NLP_LOGO_SND;
2659 spin_unlock_irq(shost->host_lock);
2660 lpfc_els_free_iocb(phba, elsiocb);
2667 * lpfc_cmpl_els_cmd - Completion callback function for generic els command
2668 * @phba: pointer to lpfc hba data structure.
2669 * @cmdiocb: pointer to lpfc command iocb data structure.
2670 * @rspiocb: pointer to lpfc response iocb data structure.
2672 * This routine is a generic completion callback function for ELS commands.
2673 * Specifically, it is the callback function which does not need to perform
2674 * any command specific operations. It is currently used by the ELS command
2675 * issuing routines for the ELS State Change Request (SCR),
2676 * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
2677 * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
2678 * certain debug loggings, this callback function simply invokes the
2679 * lpfc_els_chk_latt() routine to check whether link went down during the
2680 * discovery process.
2683 lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2684 struct lpfc_iocbq *rspiocb)
2686 struct lpfc_vport *vport = cmdiocb->vport;
2689 irsp = &rspiocb->iocb;
2691 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2692 "ELS cmd cmpl: status:x%x/x%x did:x%x",
2693 irsp->ulpStatus, irsp->un.ulpWord[4],
2694 irsp->un.elsreq64.remoteID);
2695 /* ELS cmd tag <ulpIoTag> completes */
2696 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
2697 "0106 ELS cmd tag x%x completes Data: x%x x%x x%x\n",
2698 irsp->ulpIoTag, irsp->ulpStatus,
2699 irsp->un.ulpWord[4], irsp->ulpTimeout);
2700 /* Check to see if link went down during discovery */
2701 lpfc_els_chk_latt(vport);
2702 lpfc_els_free_iocb(phba, cmdiocb);
2707 * lpfc_issue_els_scr - Issue a scr to an node on a vport
2708 * @vport: pointer to a host virtual N_Port data structure.
2709 * @nportid: N_Port identifier to the remote node.
2710 * @retry: number of retries to the command IOCB.
2712 * This routine issues a State Change Request (SCR) to a fabric node
2713 * on a @vport. The remote node @nportid is passed into the function. It
2714 * first search the @vport node list to find the matching ndlp. If no such
2715 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
2716 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
2717 * routine is invoked to send the SCR IOCB.
2719 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2720 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2721 * will be stored into the context1 field of the IOCB for the completion
2722 * callback function to the SCR ELS command.
2725 * 0 - Successfully issued scr command
2726 * 1 - Failed to issue scr command
2729 lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
2731 struct lpfc_hba *phba = vport->phba;
2732 struct lpfc_iocbq *elsiocb;
2735 struct lpfc_nodelist *ndlp;
2737 cmdsize = (sizeof(uint32_t) + sizeof(SCR));
2739 ndlp = lpfc_findnode_did(vport, nportid);
2741 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
2744 lpfc_nlp_init(vport, ndlp, nportid);
2745 lpfc_enqueue_node(vport, ndlp);
2746 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2747 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
2752 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2753 ndlp->nlp_DID, ELS_CMD_SCR);
2756 /* This will trigger the release of the node just
2763 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2765 *((uint32_t *) (pcmd)) = ELS_CMD_SCR;
2766 pcmd += sizeof(uint32_t);
2768 /* For SCR, remainder of payload is SCR parameter page */
2769 memset(pcmd, 0, sizeof(SCR));
2770 ((SCR *) pcmd)->Function = SCR_FUNC_FULL;
2772 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2773 "Issue SCR: did:x%x",
2774 ndlp->nlp_DID, 0, 0);
2776 phba->fc_stat.elsXmitSCR++;
2777 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
2778 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2780 /* The additional lpfc_nlp_put will cause the following
2781 * lpfc_els_free_iocb routine to trigger the rlease of
2785 lpfc_els_free_iocb(phba, elsiocb);
2788 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2789 * trigger the release of node.
2797 * lpfc_issue_els_farpr - Issue a farp to an node on a vport
2798 * @vport: pointer to a host virtual N_Port data structure.
2799 * @nportid: N_Port identifier to the remote node.
2800 * @retry: number of retries to the command IOCB.
2802 * This routine issues a Fibre Channel Address Resolution Response
2803 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
2804 * is passed into the function. It first search the @vport node list to find
2805 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
2806 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
2807 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
2809 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2810 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2811 * will be stored into the context1 field of the IOCB for the completion
2812 * callback function to the PARPR ELS command.
2815 * 0 - Successfully issued farpr command
2816 * 1 - Failed to issue farpr command
2819 lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
2821 struct lpfc_hba *phba = vport->phba;
2822 struct lpfc_iocbq *elsiocb;
2827 struct lpfc_nodelist *ondlp;
2828 struct lpfc_nodelist *ndlp;
2830 cmdsize = (sizeof(uint32_t) + sizeof(FARP));
2832 ndlp = lpfc_findnode_did(vport, nportid);
2834 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
2837 lpfc_nlp_init(vport, ndlp, nportid);
2838 lpfc_enqueue_node(vport, ndlp);
2839 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
2840 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
2845 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp,
2846 ndlp->nlp_DID, ELS_CMD_RNID);
2848 /* This will trigger the release of the node just
2855 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
2857 *((uint32_t *) (pcmd)) = ELS_CMD_FARPR;
2858 pcmd += sizeof(uint32_t);
2860 /* Fill in FARPR payload */
2861 fp = (FARP *) (pcmd);
2862 memset(fp, 0, sizeof(FARP));
2863 lp = (uint32_t *) pcmd;
2864 *lp++ = be32_to_cpu(nportid);
2865 *lp++ = be32_to_cpu(vport->fc_myDID);
2867 fp->Mflags = (FARP_MATCH_PORT | FARP_MATCH_NODE);
2869 memcpy(&fp->RportName, &vport->fc_portname, sizeof(struct lpfc_name));
2870 memcpy(&fp->RnodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
2871 ondlp = lpfc_findnode_did(vport, nportid);
2872 if (ondlp && NLP_CHK_NODE_ACT(ondlp)) {
2873 memcpy(&fp->OportName, &ondlp->nlp_portname,
2874 sizeof(struct lpfc_name));
2875 memcpy(&fp->OnodeName, &ondlp->nlp_nodename,
2876 sizeof(struct lpfc_name));
2879 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
2880 "Issue FARPR: did:x%x",
2881 ndlp->nlp_DID, 0, 0);
2883 phba->fc_stat.elsXmitFARPR++;
2884 elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd;
2885 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
2887 /* The additional lpfc_nlp_put will cause the following
2888 * lpfc_els_free_iocb routine to trigger the release of
2892 lpfc_els_free_iocb(phba, elsiocb);
2895 /* This will cause the callback-function lpfc_cmpl_els_cmd to
2896 * trigger the release of the node.
2903 * lpfc_cancel_retry_delay_tmo - Cancel the timer with delayed iocb-cmd retry
2904 * @vport: pointer to a host virtual N_Port data structure.
2905 * @nlp: pointer to a node-list data structure.
2907 * This routine cancels the timer with a delayed IOCB-command retry for
2908 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
2909 * removes the ELS retry event if it presents. In addition, if the
2910 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
2911 * commands are sent for the @vport's nodes that require issuing discovery
2915 lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
2917 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2918 struct lpfc_work_evt *evtp;
2920 if (!(nlp->nlp_flag & NLP_DELAY_TMO))
2922 spin_lock_irq(shost->host_lock);
2923 nlp->nlp_flag &= ~NLP_DELAY_TMO;
2924 spin_unlock_irq(shost->host_lock);
2925 del_timer_sync(&nlp->nlp_delayfunc);
2926 nlp->nlp_last_elscmd = 0;
2927 if (!list_empty(&nlp->els_retry_evt.evt_listp)) {
2928 list_del_init(&nlp->els_retry_evt.evt_listp);
2929 /* Decrement nlp reference count held for the delayed retry */
2930 evtp = &nlp->els_retry_evt;
2931 lpfc_nlp_put((struct lpfc_nodelist *)evtp->evt_arg1);
2933 if (nlp->nlp_flag & NLP_NPR_2B_DISC) {
2934 spin_lock_irq(shost->host_lock);
2935 nlp->nlp_flag &= ~NLP_NPR_2B_DISC;
2936 spin_unlock_irq(shost->host_lock);
2937 if (vport->num_disc_nodes) {
2938 if (vport->port_state < LPFC_VPORT_READY) {
2939 /* Check if there are more ADISCs to be sent */
2940 lpfc_more_adisc(vport);
2942 /* Check if there are more PLOGIs to be sent */
2943 lpfc_more_plogi(vport);
2944 if (vport->num_disc_nodes == 0) {
2945 spin_lock_irq(shost->host_lock);
2946 vport->fc_flag &= ~FC_NDISC_ACTIVE;
2947 spin_unlock_irq(shost->host_lock);
2948 lpfc_can_disctmo(vport);
2949 lpfc_end_rscn(vport);
2958 * lpfc_els_retry_delay - Timer function with a ndlp delayed function timer
2959 * @ptr: holder for the pointer to the timer function associated data (ndlp).
2961 * This routine is invoked by the ndlp delayed-function timer to check
2962 * whether there is any pending ELS retry event(s) with the node. If not, it
2963 * simply returns. Otherwise, if there is at least one ELS delayed event, it
2964 * adds the delayed events to the HBA work list and invokes the
2965 * lpfc_worker_wake_up() routine to wake up worker thread to process the
2966 * event. Note that lpfc_nlp_get() is called before posting the event to
2967 * the work list to hold reference count of ndlp so that it guarantees the
2968 * reference to ndlp will still be available when the worker thread gets
2969 * to the event associated with the ndlp.
2972 lpfc_els_retry_delay(unsigned long ptr)
2974 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
2975 struct lpfc_vport *vport = ndlp->vport;
2976 struct lpfc_hba *phba = vport->phba;
2977 unsigned long flags;
2978 struct lpfc_work_evt *evtp = &ndlp->els_retry_evt;
2980 spin_lock_irqsave(&phba->hbalock, flags);
2981 if (!list_empty(&evtp->evt_listp)) {
2982 spin_unlock_irqrestore(&phba->hbalock, flags);
2986 /* We need to hold the node by incrementing the reference
2987 * count until the queued work is done
2989 evtp->evt_arg1 = lpfc_nlp_get(ndlp);
2990 if (evtp->evt_arg1) {
2991 evtp->evt = LPFC_EVT_ELS_RETRY;
2992 list_add_tail(&evtp->evt_listp, &phba->work_list);
2993 lpfc_worker_wake_up(phba);
2995 spin_unlock_irqrestore(&phba->hbalock, flags);
3000 * lpfc_els_retry_delay_handler - Work thread handler for ndlp delayed function
3001 * @ndlp: pointer to a node-list data structure.
3003 * This routine is the worker-thread handler for processing the @ndlp delayed
3004 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
3005 * the last ELS command from the associated ndlp and invokes the proper ELS
3006 * function according to the delayed ELS command to retry the command.
3009 lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
3011 struct lpfc_vport *vport = ndlp->vport;
3012 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3013 uint32_t cmd, retry;
3015 spin_lock_irq(shost->host_lock);
3016 cmd = ndlp->nlp_last_elscmd;
3017 ndlp->nlp_last_elscmd = 0;
3019 if (!(ndlp->nlp_flag & NLP_DELAY_TMO)) {
3020 spin_unlock_irq(shost->host_lock);
3024 ndlp->nlp_flag &= ~NLP_DELAY_TMO;
3025 spin_unlock_irq(shost->host_lock);
3027 * If a discovery event readded nlp_delayfunc after timer
3028 * firing and before processing the timer, cancel the
3031 del_timer_sync(&ndlp->nlp_delayfunc);
3032 retry = ndlp->nlp_retry;
3033 ndlp->nlp_retry = 0;
3037 lpfc_issue_els_flogi(vport, ndlp, retry);
3040 if (!lpfc_issue_els_plogi(vport, ndlp->nlp_DID, retry)) {
3041 ndlp->nlp_prev_state = ndlp->nlp_state;
3042 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
3046 if (!lpfc_issue_els_adisc(vport, ndlp, retry)) {
3047 ndlp->nlp_prev_state = ndlp->nlp_state;
3048 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3052 if (!lpfc_issue_els_prli(vport, ndlp, retry)) {
3053 ndlp->nlp_prev_state = ndlp->nlp_state;
3054 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3058 if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
3059 ndlp->nlp_prev_state = ndlp->nlp_state;
3060 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3064 if (!(vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI))
3065 lpfc_issue_els_fdisc(vport, ndlp, retry);
3072 * lpfc_els_retry - Make retry decision on an els command iocb
3073 * @phba: pointer to lpfc hba data structure.
3074 * @cmdiocb: pointer to lpfc command iocb data structure.
3075 * @rspiocb: pointer to lpfc response iocb data structure.
3077 * This routine makes a retry decision on an ELS command IOCB, which has
3078 * failed. The following ELS IOCBs use this function for retrying the command
3079 * when previously issued command responsed with error status: FLOGI, PLOGI,
3080 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
3081 * returned error status, it makes the decision whether a retry shall be
3082 * issued for the command, and whether a retry shall be made immediately or
3083 * delayed. In the former case, the corresponding ELS command issuing-function
3084 * is called to retry the command. In the later case, the ELS command shall
3085 * be posted to the ndlp delayed event and delayed function timer set to the
3086 * ndlp for the delayed command issusing.
3089 * 0 - No retry of els command is made
3090 * 1 - Immediate or delayed retry of els command is made
3093 lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3094 struct lpfc_iocbq *rspiocb)
3096 struct lpfc_vport *vport = cmdiocb->vport;
3097 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3098 IOCB_t *irsp = &rspiocb->iocb;
3099 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3100 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3103 int retry = 0, maxretry = lpfc_max_els_tries, delay = 0;
3109 /* Note: context2 may be 0 for internal driver abort
3110 * of delays ELS command.
3113 if (pcmd && pcmd->virt) {
3114 elscmd = (uint32_t *) (pcmd->virt);
3118 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
3119 did = ndlp->nlp_DID;
3121 /* We should only hit this case for retrying PLOGI */
3122 did = irsp->un.elsreq64.remoteID;
3123 ndlp = lpfc_findnode_did(vport, did);
3124 if ((!ndlp || !NLP_CHK_NODE_ACT(ndlp))
3125 && (cmd != ELS_CMD_PLOGI))
3129 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
3130 "Retry ELS: wd7:x%x wd4:x%x did:x%x",
3131 *(((uint32_t *) irsp) + 7), irsp->un.ulpWord[4], ndlp->nlp_DID);
3133 switch (irsp->ulpStatus) {
3134 case IOSTAT_FCP_RSP_ERROR:
3136 case IOSTAT_REMOTE_STOP:
3137 if (phba->sli_rev == LPFC_SLI_REV4) {
3138 /* This IO was aborted by the target, we don't
3139 * know the rxid and because we did not send the
3140 * ABTS we cannot generate and RRQ.
3142 lpfc_set_rrq_active(phba, ndlp,
3143 cmdiocb->sli4_lxritag, 0, 0);
3146 case IOSTAT_LOCAL_REJECT:
3147 switch ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK)) {
3148 case IOERR_LOOP_OPEN_FAILURE:
3149 if (cmd == ELS_CMD_FLOGI) {
3150 if (PCI_DEVICE_ID_HORNET ==
3151 phba->pcidev->device) {
3152 phba->fc_topology = LPFC_TOPOLOGY_LOOP;
3153 phba->pport->fc_myDID = 0;
3154 phba->alpa_map[0] = 0;
3155 phba->alpa_map[1] = 0;
3158 if (cmd == ELS_CMD_PLOGI && cmdiocb->retry == 0)
3163 case IOERR_ILLEGAL_COMMAND:
3164 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3165 "0124 Retry illegal cmd x%x "
3166 "retry:x%x delay:x%x\n",
3167 cmd, cmdiocb->retry, delay);
3169 /* All command's retry policy */
3171 if (cmdiocb->retry > 2)
3175 case IOERR_NO_RESOURCES:
3176 logerr = 1; /* HBA out of resources */
3178 if (cmdiocb->retry > 100)
3183 case IOERR_ILLEGAL_FRAME:
3188 case IOERR_SEQUENCE_TIMEOUT:
3189 case IOERR_INVALID_RPI:
3190 if (cmd == ELS_CMD_PLOGI &&
3191 did == NameServer_DID) {
3192 /* Continue forever if plogi to */
3193 /* the nameserver fails */
3202 case IOSTAT_NPORT_RJT:
3203 case IOSTAT_FABRIC_RJT:
3204 if (irsp->un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
3210 case IOSTAT_NPORT_BSY:
3211 case IOSTAT_FABRIC_BSY:
3212 logerr = 1; /* Fabric / Remote NPort out of resources */
3217 stat.un.lsRjtError = be32_to_cpu(irsp->un.ulpWord[4]);
3218 /* Added for Vendor specifc support
3219 * Just keep retrying for these Rsn / Exp codes
3221 switch (stat.un.b.lsRjtRsnCode) {
3222 case LSRJT_UNABLE_TPC:
3223 if (stat.un.b.lsRjtRsnCodeExp ==
3224 LSEXP_CMD_IN_PROGRESS) {
3225 if (cmd == ELS_CMD_PLOGI) {
3232 if (stat.un.b.lsRjtRsnCodeExp ==
3233 LSEXP_CANT_GIVE_DATA) {
3234 if (cmd == ELS_CMD_PLOGI) {
3241 if ((cmd == ELS_CMD_PLOGI) ||
3242 (cmd == ELS_CMD_PRLI)) {
3244 maxretry = lpfc_max_els_tries + 1;
3248 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3249 (cmd == ELS_CMD_FDISC) &&
3250 (stat.un.b.lsRjtRsnCodeExp == LSEXP_OUT_OF_RESOURCE)){
3251 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3252 "0125 FDISC Failed (x%x). "
3253 "Fabric out of resources\n",
3254 stat.un.lsRjtError);
3255 lpfc_vport_set_state(vport,
3256 FC_VPORT_NO_FABRIC_RSCS);
3260 case LSRJT_LOGICAL_BSY:
3261 if ((cmd == ELS_CMD_PLOGI) ||
3262 (cmd == ELS_CMD_PRLI)) {
3265 } else if (cmd == ELS_CMD_FDISC) {
3266 /* FDISC retry policy */
3268 if (cmdiocb->retry >= 32)
3274 case LSRJT_LOGICAL_ERR:
3275 /* There are some cases where switches return this
3276 * error when they are not ready and should be returning
3277 * Logical Busy. We should delay every time.
3279 if (cmd == ELS_CMD_FDISC &&
3280 stat.un.b.lsRjtRsnCodeExp == LSEXP_PORT_LOGIN_REQ) {
3286 case LSRJT_PROTOCOL_ERR:
3287 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
3288 (cmd == ELS_CMD_FDISC) &&
3289 ((stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_PNAME) ||
3290 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
3292 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3293 "0122 FDISC Failed (x%x). "
3294 "Fabric Detected Bad WWN\n",
3295 stat.un.lsRjtError);
3296 lpfc_vport_set_state(vport,
3297 FC_VPORT_FABRIC_REJ_WWN);
3303 case IOSTAT_INTERMED_RSP:
3311 if (did == FDMI_DID)
3314 if ((cmd == ELS_CMD_FLOGI) &&
3315 (phba->fc_topology != LPFC_TOPOLOGY_LOOP) &&
3316 !lpfc_error_lost_link(irsp)) {
3317 /* FLOGI retry policy */
3319 /* retry FLOGI forever */
3320 if (phba->link_flag != LS_LOOPBACK_MODE)
3325 if (cmdiocb->retry >= 100)
3327 else if (cmdiocb->retry >= 32)
3329 } else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) {
3330 /* retry FDISCs every second up to devloss */
3332 maxretry = vport->cfg_devloss_tmo;
3337 if (maxretry && (cmdiocb->retry >= maxretry)) {
3338 phba->fc_stat.elsRetryExceeded++;
3342 if ((vport->load_flag & FC_UNLOADING) != 0)
3346 if ((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_FDISC)) {
3347 /* Stop retrying PLOGI and FDISC if in FCF discovery */
3348 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3349 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3350 "2849 Stop retry ELS command "
3351 "x%x to remote NPORT x%x, "
3352 "Data: x%x x%x\n", cmd, did,
3353 cmdiocb->retry, delay);
3358 /* Retry ELS command <elsCmd> to remote NPORT <did> */
3359 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3360 "0107 Retry ELS command x%x to remote "
3361 "NPORT x%x Data: x%x x%x\n",
3362 cmd, did, cmdiocb->retry, delay);
3364 if (((cmd == ELS_CMD_PLOGI) || (cmd == ELS_CMD_ADISC)) &&
3365 ((irsp->ulpStatus != IOSTAT_LOCAL_REJECT) ||
3366 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) !=
3367 IOERR_NO_RESOURCES))) {
3368 /* Don't reset timer for no resources */
3370 /* If discovery / RSCN timer is running, reset it */
3371 if (timer_pending(&vport->fc_disctmo) ||
3372 (vport->fc_flag & FC_RSCN_MODE))
3373 lpfc_set_disctmo(vport);
3376 phba->fc_stat.elsXmitRetry++;
3377 if (ndlp && NLP_CHK_NODE_ACT(ndlp) && delay) {
3378 phba->fc_stat.elsDelayRetry++;
3379 ndlp->nlp_retry = cmdiocb->retry;
3381 /* delay is specified in milliseconds */
3382 mod_timer(&ndlp->nlp_delayfunc,
3383 jiffies + msecs_to_jiffies(delay));
3384 spin_lock_irq(shost->host_lock);
3385 ndlp->nlp_flag |= NLP_DELAY_TMO;
3386 spin_unlock_irq(shost->host_lock);
3388 ndlp->nlp_prev_state = ndlp->nlp_state;
3389 if (cmd == ELS_CMD_PRLI)
3390 lpfc_nlp_set_state(vport, ndlp,
3391 NLP_STE_PRLI_ISSUE);
3393 lpfc_nlp_set_state(vport, ndlp,
3395 ndlp->nlp_last_elscmd = cmd;
3401 lpfc_issue_els_flogi(vport, ndlp, cmdiocb->retry);
3404 lpfc_issue_els_fdisc(vport, ndlp, cmdiocb->retry);
3407 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
3408 ndlp->nlp_prev_state = ndlp->nlp_state;
3409 lpfc_nlp_set_state(vport, ndlp,
3410 NLP_STE_PLOGI_ISSUE);
3412 lpfc_issue_els_plogi(vport, did, cmdiocb->retry);
3415 ndlp->nlp_prev_state = ndlp->nlp_state;
3416 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
3417 lpfc_issue_els_adisc(vport, ndlp, cmdiocb->retry);
3420 ndlp->nlp_prev_state = ndlp->nlp_state;
3421 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
3422 lpfc_issue_els_prli(vport, ndlp, cmdiocb->retry);
3425 ndlp->nlp_prev_state = ndlp->nlp_state;
3426 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
3427 lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
3431 /* No retry ELS command <elsCmd> to remote NPORT <did> */
3433 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3434 "0137 No retry ELS command x%x to remote "
3435 "NPORT x%x: Out of Resources: Error:x%x/%x\n",
3436 cmd, did, irsp->ulpStatus,
3437 irsp->un.ulpWord[4]);
3440 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3441 "0108 No retry ELS command x%x to remote "
3442 "NPORT x%x Retried:%d Error:x%x/%x\n",
3443 cmd, did, cmdiocb->retry, irsp->ulpStatus,
3444 irsp->un.ulpWord[4]);
3450 * lpfc_els_free_data - Free lpfc dma buffer and data structure with an iocb
3451 * @phba: pointer to lpfc hba data structure.
3452 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
3454 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
3455 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
3456 * checks to see whether there is a lpfc DMA buffer associated with the
3457 * response of the command IOCB. If so, it will be released before releasing
3458 * the lpfc DMA buffer associated with the IOCB itself.
3461 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3464 lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
3466 struct lpfc_dmabuf *buf_ptr;
3468 /* Free the response before processing the command. */
3469 if (!list_empty(&buf_ptr1->list)) {
3470 list_remove_head(&buf_ptr1->list, buf_ptr,
3473 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
3476 lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys);
3482 * lpfc_els_free_bpl - Free lpfc dma buffer and data structure with bpl
3483 * @phba: pointer to lpfc hba data structure.
3484 * @buf_ptr: pointer to the lpfc dma buffer data structure.
3486 * This routine releases the lpfc Direct Memory Access (DMA) buffer
3487 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
3491 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
3494 lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
3496 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
3502 * lpfc_els_free_iocb - Free a command iocb and its associated resources
3503 * @phba: pointer to lpfc hba data structure.
3504 * @elsiocb: pointer to lpfc els command iocb data structure.
3506 * This routine frees a command IOCB and its associated resources. The
3507 * command IOCB data structure contains the reference to various associated
3508 * resources, these fields must be set to NULL if the associated reference
3510 * context1 - reference to ndlp
3511 * context2 - reference to cmd
3512 * context2->next - reference to rsp
3513 * context3 - reference to bpl
3515 * It first properly decrements the reference count held on ndlp for the
3516 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
3517 * set, it invokes the lpfc_els_free_data() routine to release the Direct
3518 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
3519 * adds the DMA buffer the @phba data structure for the delayed release.
3520 * If reference to the Buffer Pointer List (BPL) is present, the
3521 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
3522 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
3523 * invoked to release the IOCB data structure back to @phba IOCBQ list.
3526 * 0 - Success (currently, always return 0)
3529 lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
3531 struct lpfc_dmabuf *buf_ptr, *buf_ptr1;
3532 struct lpfc_nodelist *ndlp;
3534 ndlp = (struct lpfc_nodelist *)elsiocb->context1;
3536 if (ndlp->nlp_flag & NLP_DEFER_RM) {
3539 /* If the ndlp is not being used by another discovery
3542 if (!lpfc_nlp_not_used(ndlp)) {
3543 /* If ndlp is being used by another discovery
3544 * thread, just clear NLP_DEFER_RM
3546 ndlp->nlp_flag &= ~NLP_DEFER_RM;
3551 elsiocb->context1 = NULL;
3553 /* context2 = cmd, context2->next = rsp, context3 = bpl */
3554 if (elsiocb->context2) {
3555 if (elsiocb->iocb_flag & LPFC_DELAY_MEM_FREE) {
3556 /* Firmware could still be in progress of DMAing
3557 * payload, so don't free data buffer till after
3560 elsiocb->iocb_flag &= ~LPFC_DELAY_MEM_FREE;
3561 buf_ptr = elsiocb->context2;
3562 elsiocb->context2 = NULL;
3565 spin_lock_irq(&phba->hbalock);
3566 if (!list_empty(&buf_ptr->list)) {
3567 list_remove_head(&buf_ptr->list,
3568 buf_ptr1, struct lpfc_dmabuf,
3570 INIT_LIST_HEAD(&buf_ptr1->list);
3571 list_add_tail(&buf_ptr1->list,
3575 INIT_LIST_HEAD(&buf_ptr->list);
3576 list_add_tail(&buf_ptr->list, &phba->elsbuf);
3578 spin_unlock_irq(&phba->hbalock);
3581 buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
3582 lpfc_els_free_data(phba, buf_ptr1);
3583 elsiocb->context2 = NULL;
3587 if (elsiocb->context3) {
3588 buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
3589 lpfc_els_free_bpl(phba, buf_ptr);
3590 elsiocb->context3 = NULL;
3592 lpfc_sli_release_iocbq(phba, elsiocb);
3597 * lpfc_cmpl_els_logo_acc - Completion callback function to logo acc response
3598 * @phba: pointer to lpfc hba data structure.
3599 * @cmdiocb: pointer to lpfc command iocb data structure.
3600 * @rspiocb: pointer to lpfc response iocb data structure.
3602 * This routine is the completion callback function to the Logout (LOGO)
3603 * Accept (ACC) Response ELS command. This routine is invoked to indicate
3604 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
3605 * release the ndlp if it has the last reference remaining (reference count
3606 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
3607 * field to NULL to inform the following lpfc_els_free_iocb() routine no
3608 * ndlp reference count needs to be decremented. Otherwise, the ndlp
3609 * reference use-count shall be decremented by the lpfc_els_free_iocb()
3610 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
3611 * IOCB data structure.
3614 lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3615 struct lpfc_iocbq *rspiocb)
3617 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3618 struct lpfc_vport *vport = cmdiocb->vport;
3621 irsp = &rspiocb->iocb;
3622 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3623 "ACC LOGO cmpl: status:x%x/x%x did:x%x",
3624 irsp->ulpStatus, irsp->un.ulpWord[4], ndlp->nlp_DID);
3625 /* ACC to LOGO completes to NPort <nlp_DID> */
3626 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3627 "0109 ACC to LOGO completes to NPort x%x "
3628 "Data: x%x x%x x%x\n",
3629 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3632 if (ndlp->nlp_state == NLP_STE_NPR_NODE) {
3633 /* NPort Recovery mode or node is just allocated */
3634 if (!lpfc_nlp_not_used(ndlp)) {
3635 /* If the ndlp is being used by another discovery
3636 * thread, just unregister the RPI.
3638 lpfc_unreg_rpi(vport, ndlp);
3640 /* Indicate the node has already released, should
3641 * not reference to it from within lpfc_els_free_iocb.
3643 cmdiocb->context1 = NULL;
3648 * The driver received a LOGO from the rport and has ACK'd it.
3649 * At this point, the driver is done so release the IOCB
3651 lpfc_els_free_iocb(phba, cmdiocb);
3655 * lpfc_mbx_cmpl_dflt_rpi - Completion callbk func for unreg dflt rpi mbox cmd
3656 * @phba: pointer to lpfc hba data structure.
3657 * @pmb: pointer to the driver internal queue element for mailbox command.
3659 * This routine is the completion callback function for unregister default
3660 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
3661 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
3662 * decrements the ndlp reference count held for this completion callback
3663 * function. After that, it invokes the lpfc_nlp_not_used() to check
3664 * whether there is only one reference left on the ndlp. If so, it will
3665 * perform one more decrement and trigger the release of the ndlp.
3668 lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3670 struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
3671 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
3673 pmb->context1 = NULL;
3674 pmb->context2 = NULL;
3676 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3678 mempool_free(pmb, phba->mbox_mem_pool);
3680 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3681 "0006 rpi%x DID:%x flg:%x %d map:%x %p\n",
3682 ndlp->nlp_rpi, ndlp->nlp_DID, ndlp->nlp_flag,
3683 atomic_read(&ndlp->kref.refcount),
3684 ndlp->nlp_usg_map, ndlp);
3685 if (NLP_CHK_NODE_ACT(ndlp)) {
3687 /* This is the end of the default RPI cleanup logic for
3688 * this ndlp. If no other discovery threads are using
3689 * this ndlp, free all resources associated with it.
3691 lpfc_nlp_not_used(ndlp);
3693 lpfc_drop_node(ndlp->vport, ndlp);
3701 * lpfc_cmpl_els_rsp - Completion callback function for els response iocb cmd
3702 * @phba: pointer to lpfc hba data structure.
3703 * @cmdiocb: pointer to lpfc command iocb data structure.
3704 * @rspiocb: pointer to lpfc response iocb data structure.
3706 * This routine is the completion callback function for ELS Response IOCB
3707 * command. In normal case, this callback function just properly sets the
3708 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
3709 * field in the command IOCB is not NULL, the referred mailbox command will
3710 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
3711 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
3712 * link down event occurred during the discovery, the lpfc_nlp_not_used()
3713 * routine shall be invoked trying to release the ndlp if no other threads
3714 * are currently referring it.
3717 lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3718 struct lpfc_iocbq *rspiocb)
3720 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
3721 struct lpfc_vport *vport = ndlp ? ndlp->vport : NULL;
3722 struct Scsi_Host *shost = vport ? lpfc_shost_from_vport(vport) : NULL;
3725 LPFC_MBOXQ_t *mbox = NULL;
3726 struct lpfc_dmabuf *mp = NULL;
3727 uint32_t ls_rjt = 0;
3729 irsp = &rspiocb->iocb;
3731 if (cmdiocb->context_un.mbox)
3732 mbox = cmdiocb->context_un.mbox;
3734 /* First determine if this is a LS_RJT cmpl. Note, this callback
3735 * function can have cmdiocb->contest1 (ndlp) field set to NULL.
3737 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
3738 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3739 (*((uint32_t *) (pcmd)) == ELS_CMD_LS_RJT)) {
3740 /* A LS_RJT associated with Default RPI cleanup has its own
3741 * separate code path.
3743 if (!(ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3747 /* Check to see if link went down during discovery */
3748 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || lpfc_els_chk_latt(vport)) {
3750 mp = (struct lpfc_dmabuf *) mbox->context1;
3752 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3755 mempool_free(mbox, phba->mbox_mem_pool);
3757 if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
3758 (ndlp->nlp_flag & NLP_RM_DFLT_RPI))
3759 if (lpfc_nlp_not_used(ndlp)) {
3761 /* Indicate the node has already released,
3762 * should not reference to it from within
3763 * the routine lpfc_els_free_iocb.
3765 cmdiocb->context1 = NULL;
3770 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3771 "ELS rsp cmpl: status:x%x/x%x did:x%x",
3772 irsp->ulpStatus, irsp->un.ulpWord[4],
3773 cmdiocb->iocb.un.elsreq64.remoteID);
3774 /* ELS response tag <ulpIoTag> completes */
3775 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
3776 "0110 ELS response tag x%x completes "
3777 "Data: x%x x%x x%x x%x x%x x%x x%x\n",
3778 cmdiocb->iocb.ulpIoTag, rspiocb->iocb.ulpStatus,
3779 rspiocb->iocb.un.ulpWord[4], rspiocb->iocb.ulpTimeout,
3780 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3783 if ((rspiocb->iocb.ulpStatus == 0)
3784 && (ndlp->nlp_flag & NLP_ACC_REGLOGIN)) {
3785 lpfc_unreg_rpi(vport, ndlp);
3786 /* Increment reference count to ndlp to hold the
3787 * reference to ndlp for the callback function.
3789 mbox->context2 = lpfc_nlp_get(ndlp);
3790 mbox->vport = vport;
3791 if (ndlp->nlp_flag & NLP_RM_DFLT_RPI) {
3792 mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
3793 mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
3796 mbox->mbox_cmpl = lpfc_mbx_cmpl_reg_login;
3797 ndlp->nlp_prev_state = ndlp->nlp_state;
3798 lpfc_nlp_set_state(vport, ndlp,
3799 NLP_STE_REG_LOGIN_ISSUE);
3802 ndlp->nlp_flag |= NLP_REG_LOGIN_SEND;
3803 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
3804 != MBX_NOT_FINISHED)
3807 /* Decrement the ndlp reference count we
3808 * set for this failed mailbox command.
3811 ndlp->nlp_flag &= ~NLP_REG_LOGIN_SEND;
3813 /* ELS rsp: Cannot issue reg_login for <NPortid> */
3814 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
3815 "0138 ELS rsp: Cannot issue reg_login for x%x "
3816 "Data: x%x x%x x%x\n",
3817 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
3820 if (lpfc_nlp_not_used(ndlp)) {
3822 /* Indicate node has already been released,
3823 * should not reference to it from within
3824 * the routine lpfc_els_free_iocb.
3826 cmdiocb->context1 = NULL;
3829 /* Do not drop node for lpfc_els_abort'ed ELS cmds */
3830 if (!lpfc_error_lost_link(irsp) &&
3831 ndlp->nlp_flag & NLP_ACC_REGLOGIN) {
3832 if (lpfc_nlp_not_used(ndlp)) {
3834 /* Indicate node has already been
3835 * released, should not reference
3836 * to it from within the routine
3837 * lpfc_els_free_iocb.
3839 cmdiocb->context1 = NULL;
3843 mp = (struct lpfc_dmabuf *) mbox->context1;
3845 lpfc_mbuf_free(phba, mp->virt, mp->phys);
3848 mempool_free(mbox, phba->mbox_mem_pool);
3851 if (ndlp && NLP_CHK_NODE_ACT(ndlp) && shost) {
3852 spin_lock_irq(shost->host_lock);
3854 ndlp->nlp_flag &= ~NLP_ACC_REGLOGIN;
3855 ndlp->nlp_flag &= ~NLP_RM_DFLT_RPI;
3856 spin_unlock_irq(shost->host_lock);
3858 /* If the node is not being used by another discovery thread,
3859 * and we are sending a reject, we are done with it.
3860 * Release driver reference count here and free associated
3864 if (lpfc_nlp_not_used(ndlp))
3865 /* Indicate node has already been released,
3866 * should not reference to it from within
3867 * the routine lpfc_els_free_iocb.
3869 cmdiocb->context1 = NULL;
3873 lpfc_els_free_iocb(phba, cmdiocb);
3878 * lpfc_els_rsp_acc - Prepare and issue an acc response iocb command
3879 * @vport: pointer to a host virtual N_Port data structure.
3880 * @flag: the els command code to be accepted.
3881 * @oldiocb: pointer to the original lpfc command iocb data structure.
3882 * @ndlp: pointer to a node-list data structure.
3883 * @mbox: pointer to the driver internal queue element for mailbox command.
3885 * This routine prepares and issues an Accept (ACC) response IOCB
3886 * command. It uses the @flag to properly set up the IOCB field for the
3887 * specific ACC response command to be issued and invokes the
3888 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
3889 * @mbox pointer is passed in, it will be put into the context_un.mbox
3890 * field of the IOCB for the completion callback function to issue the
3891 * mailbox command to the HBA later when callback is invoked.
3893 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3894 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3895 * will be stored into the context1 field of the IOCB for the completion
3896 * callback function to the corresponding response ELS IOCB command.
3899 * 0 - Successfully issued acc response
3900 * 1 - Failed to issue acc response
3903 lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
3904 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
3907 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3908 struct lpfc_hba *phba = vport->phba;
3911 struct lpfc_iocbq *elsiocb;
3913 struct serv_parm *sp;
3916 ELS_PKT *els_pkt_ptr;
3918 oldcmd = &oldiocb->iocb;
3922 cmdsize = sizeof(uint32_t);
3923 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3924 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
3926 spin_lock_irq(shost->host_lock);
3927 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
3928 spin_unlock_irq(shost->host_lock);
3932 icmd = &elsiocb->iocb;
3933 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
3934 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
3935 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3936 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
3937 pcmd += sizeof(uint32_t);
3939 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3940 "Issue ACC: did:x%x flg:x%x",
3941 ndlp->nlp_DID, ndlp->nlp_flag, 0);
3945 cmdsize = (sizeof(struct serv_parm) + sizeof(uint32_t));
3946 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3947 ndlp, ndlp->nlp_DID, ELS_CMD_ACC);
3951 icmd = &elsiocb->iocb;
3952 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
3953 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
3954 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
3957 elsiocb->context_un.mbox = mbox;
3959 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
3960 pcmd += sizeof(uint32_t);
3961 sp = (struct serv_parm *)pcmd;
3963 if (flag == ELS_CMD_FLOGI) {
3964 /* Copy the received service parameters back */
3965 memcpy(sp, &phba->fc_fabparam,
3966 sizeof(struct serv_parm));
3968 /* Clear the F_Port bit */
3971 /* Mark all class service parameters as invalid */
3972 sp->cls1.classValid = 0;
3973 sp->cls2.classValid = 0;
3974 sp->cls3.classValid = 0;
3975 sp->cls4.classValid = 0;
3977 /* Copy our worldwide names */
3978 memcpy(&sp->portName, &vport->fc_sparam.portName,
3979 sizeof(struct lpfc_name));
3980 memcpy(&sp->nodeName, &vport->fc_sparam.nodeName,
3981 sizeof(struct lpfc_name));
3983 memcpy(pcmd, &vport->fc_sparam,
3984 sizeof(struct serv_parm));
3986 sp->cmn.valid_vendor_ver_level = 0;
3987 memset(sp->vendorVersion, 0, sizeof(sp->vendorVersion));
3990 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
3991 "Issue ACC FLOGI/PLOGI: did:x%x flg:x%x",
3992 ndlp->nlp_DID, ndlp->nlp_flag, 0);
3995 cmdsize = sizeof(uint32_t) + sizeof(PRLO);
3996 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry,
3997 ndlp, ndlp->nlp_DID, ELS_CMD_PRLO);
4001 icmd = &elsiocb->iocb;
4002 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4003 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4004 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4006 memcpy(pcmd, ((struct lpfc_dmabuf *) oldiocb->context2)->virt,
4007 sizeof(uint32_t) + sizeof(PRLO));
4008 *((uint32_t *) (pcmd)) = ELS_CMD_PRLO_ACC;
4009 els_pkt_ptr = (ELS_PKT *) pcmd;
4010 els_pkt_ptr->un.prlo.acceptRspCode = PRLO_REQ_EXECUTED;
4012 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4013 "Issue ACC PRLO: did:x%x flg:x%x",
4014 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4019 /* Xmit ELS ACC response tag <ulpIoTag> */
4020 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4021 "0128 Xmit ELS ACC response tag x%x, XRI: x%x, "
4022 "DID: x%x, nlp_flag: x%x nlp_state: x%x RPI: x%x "
4024 elsiocb->iotag, elsiocb->iocb.ulpContext,
4025 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4026 ndlp->nlp_rpi, vport->fc_flag);
4027 if (ndlp->nlp_flag & NLP_LOGO_ACC) {
4028 spin_lock_irq(shost->host_lock);
4029 if (!(ndlp->nlp_flag & NLP_RPI_REGISTERED ||
4030 ndlp->nlp_flag & NLP_REG_LOGIN_SEND))
4031 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
4032 spin_unlock_irq(shost->host_lock);
4033 elsiocb->iocb_cmpl = lpfc_cmpl_els_logo_acc;
4035 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4038 phba->fc_stat.elsXmitACC++;
4039 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4040 if (rc == IOCB_ERROR) {
4041 lpfc_els_free_iocb(phba, elsiocb);
4048 * lpfc_els_rsp_reject - Propare and issue a rjt response iocb command
4049 * @vport: pointer to a virtual N_Port data structure.
4051 * @oldiocb: pointer to the original lpfc command iocb data structure.
4052 * @ndlp: pointer to a node-list data structure.
4053 * @mbox: pointer to the driver internal queue element for mailbox command.
4055 * This routine prepares and issue an Reject (RJT) response IOCB
4056 * command. If a @mbox pointer is passed in, it will be put into the
4057 * context_un.mbox field of the IOCB for the completion callback function
4058 * to issue to the HBA later.
4060 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4061 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4062 * will be stored into the context1 field of the IOCB for the completion
4063 * callback function to the reject response ELS IOCB command.
4066 * 0 - Successfully issued reject response
4067 * 1 - Failed to issue reject response
4070 lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
4071 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
4074 struct lpfc_hba *phba = vport->phba;
4077 struct lpfc_iocbq *elsiocb;
4082 cmdsize = 2 * sizeof(uint32_t);
4083 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4084 ndlp->nlp_DID, ELS_CMD_LS_RJT);
4088 icmd = &elsiocb->iocb;
4089 oldcmd = &oldiocb->iocb;
4090 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4091 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4092 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4094 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
4095 pcmd += sizeof(uint32_t);
4096 *((uint32_t *) (pcmd)) = rejectError;
4099 elsiocb->context_un.mbox = mbox;
4101 /* Xmit ELS RJT <err> response tag <ulpIoTag> */
4102 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4103 "0129 Xmit ELS RJT x%x response tag x%x "
4104 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
4106 rejectError, elsiocb->iotag,
4107 elsiocb->iocb.ulpContext, ndlp->nlp_DID,
4108 ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
4109 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4110 "Issue LS_RJT: did:x%x flg:x%x err:x%x",
4111 ndlp->nlp_DID, ndlp->nlp_flag, rejectError);
4113 phba->fc_stat.elsXmitLSRJT++;
4114 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4115 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4117 if (rc == IOCB_ERROR) {
4118 lpfc_els_free_iocb(phba, elsiocb);
4125 * lpfc_els_rsp_adisc_acc - Prepare and issue acc response to adisc iocb cmd
4126 * @vport: pointer to a virtual N_Port data structure.
4127 * @oldiocb: pointer to the original lpfc command iocb data structure.
4128 * @ndlp: pointer to a node-list data structure.
4130 * This routine prepares and issues an Accept (ACC) response to Address
4131 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
4132 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4134 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4135 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4136 * will be stored into the context1 field of the IOCB for the completion
4137 * callback function to the ADISC Accept response ELS IOCB command.
4140 * 0 - Successfully issued acc adisc response
4141 * 1 - Failed to issue adisc acc response
4144 lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4145 struct lpfc_nodelist *ndlp)
4147 struct lpfc_hba *phba = vport->phba;
4149 IOCB_t *icmd, *oldcmd;
4150 struct lpfc_iocbq *elsiocb;
4155 cmdsize = sizeof(uint32_t) + sizeof(ADISC);
4156 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4157 ndlp->nlp_DID, ELS_CMD_ACC);
4161 icmd = &elsiocb->iocb;
4162 oldcmd = &oldiocb->iocb;
4163 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4164 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4166 /* Xmit ADISC ACC response tag <ulpIoTag> */
4167 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4168 "0130 Xmit ADISC ACC response iotag x%x xri: "
4169 "x%x, did x%x, nlp_flag x%x, nlp_state x%x rpi x%x\n",
4170 elsiocb->iotag, elsiocb->iocb.ulpContext,
4171 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4173 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4175 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4176 pcmd += sizeof(uint32_t);
4178 ap = (ADISC *) (pcmd);
4179 ap->hardAL_PA = phba->fc_pref_ALPA;
4180 memcpy(&ap->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4181 memcpy(&ap->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
4182 ap->DID = be32_to_cpu(vport->fc_myDID);
4184 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4185 "Issue ACC ADISC: did:x%x flg:x%x",
4186 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4188 phba->fc_stat.elsXmitACC++;
4189 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4190 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4191 if (rc == IOCB_ERROR) {
4192 lpfc_els_free_iocb(phba, elsiocb);
4199 * lpfc_els_rsp_prli_acc - Prepare and issue acc response to prli iocb cmd
4200 * @vport: pointer to a virtual N_Port data structure.
4201 * @oldiocb: pointer to the original lpfc command iocb data structure.
4202 * @ndlp: pointer to a node-list data structure.
4204 * This routine prepares and issues an Accept (ACC) response to Process
4205 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
4206 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
4208 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4209 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4210 * will be stored into the context1 field of the IOCB for the completion
4211 * callback function to the PRLI Accept response ELS IOCB command.
4214 * 0 - Successfully issued acc prli response
4215 * 1 - Failed to issue acc prli response
4218 lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
4219 struct lpfc_nodelist *ndlp)
4221 struct lpfc_hba *phba = vport->phba;
4226 struct lpfc_iocbq *elsiocb;
4231 cmdsize = sizeof(uint32_t) + sizeof(PRLI);
4232 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4233 ndlp->nlp_DID, (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK)));
4237 icmd = &elsiocb->iocb;
4238 oldcmd = &oldiocb->iocb;
4239 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4240 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4242 /* Xmit PRLI ACC response tag <ulpIoTag> */
4243 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4244 "0131 Xmit PRLI ACC response tag x%x xri x%x, "
4245 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
4246 elsiocb->iotag, elsiocb->iocb.ulpContext,
4247 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4249 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4251 *((uint32_t *) (pcmd)) = (ELS_CMD_ACC | (ELS_CMD_PRLI & ~ELS_RSP_MASK));
4252 pcmd += sizeof(uint32_t);
4254 /* For PRLI, remainder of payload is PRLI parameter page */
4255 memset(pcmd, 0, sizeof(PRLI));
4257 npr = (PRLI *) pcmd;
4260 * If the remote port is a target and our firmware version is 3.20 or
4261 * later, set the following bits for FC-TAPE support.
4263 if ((ndlp->nlp_type & NLP_FCP_TARGET) &&
4264 (vpd->rev.feaLevelHigh >= 0x02)) {
4265 npr->ConfmComplAllowed = 1;
4267 npr->TaskRetryIdReq = 1;
4270 npr->acceptRspCode = PRLI_REQ_EXECUTED;
4271 npr->estabImagePair = 1;
4272 npr->readXferRdyDis = 1;
4273 npr->ConfmComplAllowed = 1;
4275 npr->prliType = PRLI_FCP_TYPE;
4276 npr->initiatorFunc = 1;
4278 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4279 "Issue ACC PRLI: did:x%x flg:x%x",
4280 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4282 phba->fc_stat.elsXmitACC++;
4283 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4285 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4286 if (rc == IOCB_ERROR) {
4287 lpfc_els_free_iocb(phba, elsiocb);
4294 * lpfc_els_rsp_rnid_acc - Issue rnid acc response iocb command
4295 * @vport: pointer to a virtual N_Port data structure.
4296 * @format: rnid command format.
4297 * @oldiocb: pointer to the original lpfc command iocb data structure.
4298 * @ndlp: pointer to a node-list data structure.
4300 * This routine issues a Request Node Identification Data (RNID) Accept
4301 * (ACC) response. It constructs the RNID ACC response command according to
4302 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
4303 * issue the response. Note that this command does not need to hold the ndlp
4304 * reference count for the callback. So, the ndlp reference count taken by
4305 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
4306 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
4307 * there is no ndlp reference available.
4309 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4310 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4311 * will be stored into the context1 field of the IOCB for the completion
4312 * callback function. However, for the RNID Accept Response ELS command,
4313 * this is undone later by this routine after the IOCB is allocated.
4316 * 0 - Successfully issued acc rnid response
4317 * 1 - Failed to issue acc rnid response
4320 lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
4321 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4323 struct lpfc_hba *phba = vport->phba;
4325 IOCB_t *icmd, *oldcmd;
4326 struct lpfc_iocbq *elsiocb;
4331 cmdsize = sizeof(uint32_t) + sizeof(uint32_t)
4332 + (2 * sizeof(struct lpfc_name));
4334 cmdsize += sizeof(RNID_TOP_DISC);
4336 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4337 ndlp->nlp_DID, ELS_CMD_ACC);
4341 icmd = &elsiocb->iocb;
4342 oldcmd = &oldiocb->iocb;
4343 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
4344 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
4346 /* Xmit RNID ACC response tag <ulpIoTag> */
4347 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4348 "0132 Xmit RNID ACC response tag x%x xri x%x\n",
4349 elsiocb->iotag, elsiocb->iocb.ulpContext);
4350 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4351 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4352 pcmd += sizeof(uint32_t);
4354 memset(pcmd, 0, sizeof(RNID));
4355 rn = (RNID *) (pcmd);
4356 rn->Format = format;
4357 rn->CommonLen = (2 * sizeof(struct lpfc_name));
4358 memcpy(&rn->portName, &vport->fc_portname, sizeof(struct lpfc_name));
4359 memcpy(&rn->nodeName, &vport->fc_nodename, sizeof(struct lpfc_name));
4362 rn->SpecificLen = 0;
4364 case RNID_TOPOLOGY_DISC:
4365 rn->SpecificLen = sizeof(RNID_TOP_DISC);
4366 memcpy(&rn->un.topologyDisc.portName,
4367 &vport->fc_portname, sizeof(struct lpfc_name));
4368 rn->un.topologyDisc.unitType = RNID_HBA;
4369 rn->un.topologyDisc.physPort = 0;
4370 rn->un.topologyDisc.attachedNodes = 0;
4374 rn->SpecificLen = 0;
4378 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4379 "Issue ACC RNID: did:x%x flg:x%x",
4380 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4382 phba->fc_stat.elsXmitACC++;
4383 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4385 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4386 if (rc == IOCB_ERROR) {
4387 lpfc_els_free_iocb(phba, elsiocb);
4394 * lpfc_els_clear_rrq - Clear the rq that this rrq describes.
4395 * @vport: pointer to a virtual N_Port data structure.
4396 * @iocb: pointer to the lpfc command iocb data structure.
4397 * @ndlp: pointer to a node-list data structure.
4402 lpfc_els_clear_rrq(struct lpfc_vport *vport,
4403 struct lpfc_iocbq *iocb, struct lpfc_nodelist *ndlp)
4405 struct lpfc_hba *phba = vport->phba;
4410 struct lpfc_node_rrq *prrq;
4413 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) iocb->context2)->virt);
4414 pcmd += sizeof(uint32_t);
4415 rrq = (struct RRQ *)pcmd;
4416 rrq->rrq_exchg = be32_to_cpu(rrq->rrq_exchg);
4417 rxid = bf_get(rrq_rxid, rrq);
4419 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4420 "2883 Clear RRQ for SID:x%x OXID:x%x RXID:x%x"
4422 be32_to_cpu(bf_get(rrq_did, rrq)),
4423 bf_get(rrq_oxid, rrq),
4425 iocb->iotag, iocb->iocb.ulpContext);
4427 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4428 "Clear RRQ: did:x%x flg:x%x exchg:x%.08x",
4429 ndlp->nlp_DID, ndlp->nlp_flag, rrq->rrq_exchg);
4430 if (vport->fc_myDID == be32_to_cpu(bf_get(rrq_did, rrq)))
4431 xri = bf_get(rrq_oxid, rrq);
4434 prrq = lpfc_get_active_rrq(vport, xri, ndlp->nlp_DID);
4436 lpfc_clr_rrq_active(phba, xri, prrq);
4441 * lpfc_els_rsp_echo_acc - Issue echo acc response
4442 * @vport: pointer to a virtual N_Port data structure.
4443 * @data: pointer to echo data to return in the accept.
4444 * @oldiocb: pointer to the original lpfc command iocb data structure.
4445 * @ndlp: pointer to a node-list data structure.
4448 * 0 - Successfully issued acc echo response
4449 * 1 - Failed to issue acc echo response
4452 lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data,
4453 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
4455 struct lpfc_hba *phba = vport->phba;
4456 struct lpfc_iocbq *elsiocb;
4461 cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len;
4463 /* The accumulated length can exceed the BPL_SIZE. For
4464 * now, use this as the limit
4466 if (cmdsize > LPFC_BPL_SIZE)
4467 cmdsize = LPFC_BPL_SIZE;
4468 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
4469 ndlp->nlp_DID, ELS_CMD_ACC);
4473 elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext; /* Xri / rx_id */
4474 elsiocb->iocb.unsli3.rcvsli3.ox_id = oldiocb->iocb.unsli3.rcvsli3.ox_id;
4476 /* Xmit ECHO ACC response tag <ulpIoTag> */
4477 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4478 "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
4479 elsiocb->iotag, elsiocb->iocb.ulpContext);
4480 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4481 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4482 pcmd += sizeof(uint32_t);
4483 memcpy(pcmd, data, cmdsize - sizeof(uint32_t));
4485 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
4486 "Issue ACC ECHO: did:x%x flg:x%x",
4487 ndlp->nlp_DID, ndlp->nlp_flag, 0);
4489 phba->fc_stat.elsXmitACC++;
4490 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4492 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4493 if (rc == IOCB_ERROR) {
4494 lpfc_els_free_iocb(phba, elsiocb);
4501 * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
4502 * @vport: pointer to a host virtual N_Port data structure.
4504 * This routine issues Address Discover (ADISC) ELS commands to those
4505 * N_Ports which are in node port recovery state and ADISC has not been issued
4506 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
4507 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
4508 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
4509 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
4510 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
4511 * IOCBs quit for later pick up. On the other hand, after walking through
4512 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
4513 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
4514 * no more ADISC need to be sent.
4517 * The number of N_Ports with adisc issued.
4520 lpfc_els_disc_adisc(struct lpfc_vport *vport)
4522 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4523 struct lpfc_nodelist *ndlp, *next_ndlp;
4526 /* go thru NPR nodes and issue any remaining ELS ADISCs */
4527 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4528 if (!NLP_CHK_NODE_ACT(ndlp))
4530 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4531 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4532 (ndlp->nlp_flag & NLP_NPR_ADISC) != 0) {
4533 spin_lock_irq(shost->host_lock);
4534 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
4535 spin_unlock_irq(shost->host_lock);
4536 ndlp->nlp_prev_state = ndlp->nlp_state;
4537 lpfc_nlp_set_state(vport, ndlp, NLP_STE_ADISC_ISSUE);
4538 lpfc_issue_els_adisc(vport, ndlp, 0);
4540 vport->num_disc_nodes++;
4541 if (vport->num_disc_nodes >=
4542 vport->cfg_discovery_threads) {
4543 spin_lock_irq(shost->host_lock);
4544 vport->fc_flag |= FC_NLP_MORE;
4545 spin_unlock_irq(shost->host_lock);
4550 if (sentadisc == 0) {
4551 spin_lock_irq(shost->host_lock);
4552 vport->fc_flag &= ~FC_NLP_MORE;
4553 spin_unlock_irq(shost->host_lock);
4559 * lpfc_els_disc_plogi - Issue plogi for all npr nodes of a vport before adisc
4560 * @vport: pointer to a host virtual N_Port data structure.
4562 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
4563 * which are in node port recovery state, with a @vport. Each time an ELS
4564 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
4565 * the per @vport number of discover count (num_disc_nodes) shall be
4566 * incremented. If the num_disc_nodes reaches a pre-configured threshold
4567 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
4568 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
4569 * later pick up. On the other hand, after walking through all the ndlps with
4570 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
4571 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
4572 * PLOGI need to be sent.
4575 * The number of N_Ports with plogi issued.
4578 lpfc_els_disc_plogi(struct lpfc_vport *vport)
4580 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4581 struct lpfc_nodelist *ndlp, *next_ndlp;
4584 /* go thru NPR nodes and issue any remaining ELS PLOGIs */
4585 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
4586 if (!NLP_CHK_NODE_ACT(ndlp))
4588 if (ndlp->nlp_state == NLP_STE_NPR_NODE &&
4589 (ndlp->nlp_flag & NLP_NPR_2B_DISC) != 0 &&
4590 (ndlp->nlp_flag & NLP_DELAY_TMO) == 0 &&
4591 (ndlp->nlp_flag & NLP_NPR_ADISC) == 0) {
4592 ndlp->nlp_prev_state = ndlp->nlp_state;
4593 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
4594 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
4596 vport->num_disc_nodes++;
4597 if (vport->num_disc_nodes >=
4598 vport->cfg_discovery_threads) {
4599 spin_lock_irq(shost->host_lock);
4600 vport->fc_flag |= FC_NLP_MORE;
4601 spin_unlock_irq(shost->host_lock);
4607 lpfc_set_disctmo(vport);
4610 spin_lock_irq(shost->host_lock);
4611 vport->fc_flag &= ~FC_NLP_MORE;
4612 spin_unlock_irq(shost->host_lock);
4618 lpfc_rdp_res_link_service(struct fc_rdp_link_service_desc *desc,
4622 desc->tag = cpu_to_be32(RDP_LINK_SERVICE_DESC_TAG);
4623 desc->payload.els_req = word0;
4624 desc->length = cpu_to_be32(sizeof(desc->payload));
4628 lpfc_rdp_res_sfp_desc(struct fc_rdp_sfp_desc *desc,
4629 uint8_t *page_a0, uint8_t *page_a2)
4631 uint16_t wavelength;
4632 uint16_t temperature;
4638 struct sff_trasnceiver_codes_byte4 *trasn_code_byte4;
4639 struct sff_trasnceiver_codes_byte5 *trasn_code_byte5;
4641 desc->tag = cpu_to_be32(RDP_SFP_DESC_TAG);
4643 trasn_code_byte4 = (struct sff_trasnceiver_codes_byte4 *)
4644 &page_a0[SSF_TRANSCEIVER_CODE_B4];
4645 trasn_code_byte5 = (struct sff_trasnceiver_codes_byte5 *)
4646 &page_a0[SSF_TRANSCEIVER_CODE_B5];
4648 if ((trasn_code_byte4->fc_sw_laser) ||
4649 (trasn_code_byte5->fc_sw_laser_sl) ||
4650 (trasn_code_byte5->fc_sw_laser_sn)) { /* check if its short WL */
4651 flag |= (SFP_FLAG_PT_SWLASER << SFP_FLAG_PT_SHIFT);
4652 } else if (trasn_code_byte4->fc_lw_laser) {
4653 wavelength = (page_a0[SSF_WAVELENGTH_B1] << 8) |
4654 page_a0[SSF_WAVELENGTH_B0];
4655 if (wavelength == SFP_WAVELENGTH_LC1310)
4656 flag |= SFP_FLAG_PT_LWLASER_LC1310 << SFP_FLAG_PT_SHIFT;
4657 if (wavelength == SFP_WAVELENGTH_LL1550)
4658 flag |= SFP_FLAG_PT_LWLASER_LL1550 << SFP_FLAG_PT_SHIFT;
4660 /* check if its SFP+ */
4661 flag |= ((page_a0[SSF_IDENTIFIER] == SFF_PG0_IDENT_SFP) ?
4662 SFP_FLAG_CT_SFP_PLUS : SFP_FLAG_CT_UNKNOWN)
4663 << SFP_FLAG_CT_SHIFT;
4665 /* check if its OPTICAL */
4666 flag |= ((page_a0[SSF_CONNECTOR] == SFF_PG0_CONNECTOR_LC) ?
4667 SFP_FLAG_IS_OPTICAL_PORT : 0)
4668 << SFP_FLAG_IS_OPTICAL_SHIFT;
4670 temperature = (page_a2[SFF_TEMPERATURE_B1] << 8 |
4671 page_a2[SFF_TEMPERATURE_B0]);
4672 vcc = (page_a2[SFF_VCC_B1] << 8 |
4673 page_a2[SFF_VCC_B0]);
4674 tx_power = (page_a2[SFF_TXPOWER_B1] << 8 |
4675 page_a2[SFF_TXPOWER_B0]);
4676 tx_bias = (page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 |
4677 page_a2[SFF_TX_BIAS_CURRENT_B0]);
4678 rx_power = (page_a2[SFF_RXPOWER_B1] << 8 |
4679 page_a2[SFF_RXPOWER_B0]);
4680 desc->sfp_info.temperature = cpu_to_be16(temperature);
4681 desc->sfp_info.rx_power = cpu_to_be16(rx_power);
4682 desc->sfp_info.tx_bias = cpu_to_be16(tx_bias);
4683 desc->sfp_info.tx_power = cpu_to_be16(tx_power);
4684 desc->sfp_info.vcc = cpu_to_be16(vcc);
4686 desc->sfp_info.flags = cpu_to_be16(flag);
4687 desc->length = cpu_to_be32(sizeof(desc->sfp_info));
4691 lpfc_rdp_res_link_error(struct fc_rdp_link_error_status_desc *desc,
4696 desc->tag = cpu_to_be32(RDP_LINK_ERROR_STATUS_DESC_TAG);
4698 type = VN_PT_PHY_PF_PORT << VN_PT_PHY_SHIFT;
4700 desc->info.port_type = cpu_to_be32(type);
4702 desc->info.link_status.link_failure_cnt =
4703 cpu_to_be32(stat->linkFailureCnt);
4704 desc->info.link_status.loss_of_synch_cnt =
4705 cpu_to_be32(stat->lossSyncCnt);
4706 desc->info.link_status.loss_of_signal_cnt =
4707 cpu_to_be32(stat->lossSignalCnt);
4708 desc->info.link_status.primitive_seq_proto_err =
4709 cpu_to_be32(stat->primSeqErrCnt);
4710 desc->info.link_status.invalid_trans_word =
4711 cpu_to_be32(stat->invalidXmitWord);
4712 desc->info.link_status.invalid_crc_cnt = cpu_to_be32(stat->crcCnt);
4714 desc->length = cpu_to_be32(sizeof(desc->info));
4718 lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
4720 uint16_t rdp_cap = 0;
4723 desc->tag = cpu_to_be32(RDP_PORT_SPEED_DESC_TAG);
4725 switch (phba->fc_linkspeed) {
4726 case LPFC_LINK_SPEED_1GHZ:
4727 rdp_speed = RDP_PS_1GB;
4729 case LPFC_LINK_SPEED_2GHZ:
4730 rdp_speed = RDP_PS_2GB;
4732 case LPFC_LINK_SPEED_4GHZ:
4733 rdp_speed = RDP_PS_4GB;
4735 case LPFC_LINK_SPEED_8GHZ:
4736 rdp_speed = RDP_PS_8GB;
4738 case LPFC_LINK_SPEED_10GHZ:
4739 rdp_speed = RDP_PS_10GB;
4741 case LPFC_LINK_SPEED_16GHZ:
4742 rdp_speed = RDP_PS_16GB;
4745 rdp_speed = RDP_PS_UNKNOWN;
4749 desc->info.port_speed.speed = cpu_to_be16(rdp_speed);
4751 if (phba->lmt & LMT_32Gb)
4752 rdp_cap |= RDP_PS_32GB;
4753 if (phba->lmt & LMT_16Gb)
4754 rdp_cap |= RDP_PS_16GB;
4755 if (phba->lmt & LMT_10Gb)
4756 rdp_cap |= RDP_PS_10GB;
4757 if (phba->lmt & LMT_8Gb)
4758 rdp_cap |= RDP_PS_8GB;
4759 if (phba->lmt & LMT_4Gb)
4760 rdp_cap |= RDP_PS_4GB;
4761 if (phba->lmt & LMT_2Gb)
4762 rdp_cap |= RDP_PS_2GB;
4763 if (phba->lmt & LMT_1Gb)
4764 rdp_cap |= RDP_PS_1GB;
4767 rdp_cap = RDP_CAP_UNKNOWN;
4769 desc->info.port_speed.capabilities = cpu_to_be16(rdp_cap);
4770 desc->length = cpu_to_be32(sizeof(desc->info));
4774 lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc,
4775 struct lpfc_hba *phba)
4778 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
4780 memcpy(desc->port_names.wwnn, phba->wwnn,
4781 sizeof(desc->port_names.wwnn));
4783 memcpy(desc->port_names.wwpn, &phba->wwpn,
4784 sizeof(desc->port_names.wwpn));
4786 desc->length = cpu_to_be32(sizeof(desc->port_names));
4790 lpfc_rdp_res_attach_port_names(struct fc_rdp_port_name_desc *desc,
4791 struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4794 desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG);
4795 if (vport->fc_flag & FC_FABRIC) {
4796 memcpy(desc->port_names.wwnn, &vport->fabric_nodename,
4797 sizeof(desc->port_names.wwnn));
4799 memcpy(desc->port_names.wwpn, &vport->fabric_portname,
4800 sizeof(desc->port_names.wwpn));
4801 } else { /* Point to Point */
4802 memcpy(desc->port_names.wwnn, &ndlp->nlp_nodename,
4803 sizeof(desc->port_names.wwnn));
4805 memcpy(desc->port_names.wwnn, &ndlp->nlp_portname,
4806 sizeof(desc->port_names.wwpn));
4809 desc->length = cpu_to_be32(sizeof(desc->port_names));
4813 lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context,
4816 struct lpfc_nodelist *ndlp = rdp_context->ndlp;
4817 struct lpfc_vport *vport = ndlp->vport;
4818 struct lpfc_iocbq *elsiocb;
4821 struct ls_rjt *stat;
4822 struct fc_rdp_res_frame *rdp_res;
4826 if (status != SUCCESS)
4828 cmdsize = sizeof(struct fc_rdp_res_frame);
4830 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize,
4831 lpfc_max_els_tries, rdp_context->ndlp,
4832 rdp_context->ndlp->nlp_DID, ELS_CMD_ACC);
4835 goto free_rdp_context;
4837 icmd = &elsiocb->iocb;
4838 icmd->ulpContext = rdp_context->rx_id;
4839 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
4841 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4842 "2171 Xmit RDP response tag x%x xri x%x, "
4843 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x",
4844 elsiocb->iotag, elsiocb->iocb.ulpContext,
4845 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
4847 rdp_res = (struct fc_rdp_res_frame *)
4848 (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4849 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4850 memset(pcmd, 0, sizeof(struct fc_rdp_res_frame));
4851 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
4853 /* For RDP payload */
4854 lpfc_rdp_res_link_service(&rdp_res->link_service_desc, ELS_CMD_RDP);
4856 lpfc_rdp_res_sfp_desc(&rdp_res->sfp_desc,
4857 rdp_context->page_a0, rdp_context->page_a2);
4858 lpfc_rdp_res_speed(&rdp_res->portspeed_desc, phba);
4859 lpfc_rdp_res_link_error(&rdp_res->link_error_desc,
4860 &rdp_context->link_stat);
4861 lpfc_rdp_res_diag_port_names(&rdp_res->diag_port_names_desc, phba);
4862 lpfc_rdp_res_attach_port_names(&rdp_res->attached_port_names_desc,
4864 rdp_res->length = cpu_to_be32(RDP_DESC_PAYLOAD_SIZE);
4866 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4868 phba->fc_stat.elsXmitACC++;
4869 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4870 if (rc == IOCB_ERROR)
4871 lpfc_els_free_iocb(phba, elsiocb);
4877 cmdsize = 2 * sizeof(uint32_t);
4878 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, lpfc_max_els_tries,
4879 ndlp, ndlp->nlp_DID, ELS_CMD_LS_RJT);
4882 goto free_rdp_context;
4884 icmd = &elsiocb->iocb;
4885 icmd->ulpContext = rdp_context->rx_id;
4886 icmd->unsli3.rcvsli3.ox_id = rdp_context->ox_id;
4887 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
4889 *((uint32_t *) (pcmd)) = ELS_CMD_LS_RJT;
4890 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
4891 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
4893 phba->fc_stat.elsXmitLSRJT++;
4894 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
4895 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
4897 if (rc == IOCB_ERROR)
4898 lpfc_els_free_iocb(phba, elsiocb);
4904 lpfc_get_rdp_info(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context)
4906 LPFC_MBOXQ_t *mbox = NULL;
4909 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4911 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_ELS,
4912 "7105 failed to allocate mailbox memory");
4916 if (lpfc_sli4_dump_page_a0(phba, mbox))
4917 goto prep_mbox_fail;
4918 mbox->vport = rdp_context->ndlp->vport;
4919 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_page_a0;
4920 mbox->context2 = (struct lpfc_rdp_context *) rdp_context;
4921 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
4922 if (rc == MBX_NOT_FINISHED)
4923 goto issue_mbox_fail;
4929 mempool_free(mbox, phba->mbox_mem_pool);
4934 * lpfc_els_rcv_rdp - Process an unsolicited RDP ELS.
4935 * @vport: pointer to a host virtual N_Port data structure.
4936 * @cmdiocb: pointer to lpfc command iocb data structure.
4937 * @ndlp: pointer to a node-list data structure.
4939 * This routine processes an unsolicited RDP(Read Diagnostic Parameters)
4940 * IOCB. First, the payload of the unsolicited RDP is checked.
4941 * Then it will (1) send MBX_DUMP_MEMORY, Embedded DMP_LMSD sub command TYPE-3
4942 * for Page A0, (2) send MBX_DUMP_MEMORY, DMP_LMSD for Page A2,
4943 * (3) send MBX_READ_LNK_STAT to get link stat, (4) Call lpfc_els_rdp_cmpl
4944 * gather all data and send RDP response.
4947 * 0 - Sent the acc response
4948 * 1 - Sent the reject response.
4951 lpfc_els_rcv_rdp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
4952 struct lpfc_nodelist *ndlp)
4954 struct lpfc_hba *phba = vport->phba;
4955 struct lpfc_dmabuf *pcmd;
4956 uint8_t rjt_err, rjt_expl = LSEXP_NOTHING_MORE;
4957 struct fc_rdp_req_frame *rdp_req;
4958 struct lpfc_rdp_context *rdp_context;
4962 if (phba->sli_rev < LPFC_SLI_REV4 ||
4963 (bf_get(lpfc_sli_intf_if_type,
4964 &phba->sli4_hba.sli_intf) !=
4965 LPFC_SLI_INTF_IF_TYPE_2)) {
4966 rjt_err = LSRJT_UNABLE_TPC;
4967 rjt_expl = LSEXP_REQ_UNSUPPORTED;
4971 if (phba->sli_rev < LPFC_SLI_REV4 || (phba->hba_flag & HBA_FCOE_MODE)) {
4972 rjt_err = LSRJT_UNABLE_TPC;
4973 rjt_expl = LSEXP_REQ_UNSUPPORTED;
4977 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
4978 rdp_req = (struct fc_rdp_req_frame *) pcmd->virt;
4981 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
4982 "2422 ELS RDP Request "
4983 "dec len %d tag x%x port_id %d len %d\n",
4984 be32_to_cpu(rdp_req->rdp_des_length),
4985 be32_to_cpu(rdp_req->nport_id_desc.tag),
4986 be32_to_cpu(rdp_req->nport_id_desc.nport_id),
4987 be32_to_cpu(rdp_req->nport_id_desc.length));
4989 if (sizeof(struct fc_rdp_nport_desc) !=
4990 be32_to_cpu(rdp_req->rdp_des_length))
4992 if (RDP_N_PORT_DESC_TAG != be32_to_cpu(rdp_req->nport_id_desc.tag))
4994 if (RDP_NPORT_ID_SIZE !=
4995 be32_to_cpu(rdp_req->nport_id_desc.length))
4997 rdp_context = kmalloc(sizeof(struct lpfc_rdp_context), GFP_KERNEL);
4999 rjt_err = LSRJT_UNABLE_TPC;
5003 memset(rdp_context, 0, sizeof(struct lpfc_rdp_context));
5004 cmd = &cmdiocb->iocb;
5005 rdp_context->ndlp = lpfc_nlp_get(ndlp);
5006 rdp_context->ox_id = cmd->unsli3.rcvsli3.ox_id;
5007 rdp_context->rx_id = cmd->ulpContext;
5008 rdp_context->cmpl = lpfc_els_rdp_cmpl;
5009 if (lpfc_get_rdp_info(phba, rdp_context)) {
5010 lpfc_printf_vlog(ndlp->vport, KERN_WARNING, LOG_ELS,
5011 "2423 Unable to send mailbox");
5013 rjt_err = LSRJT_UNABLE_TPC;
5021 rjt_err = LSRJT_LOGICAL_ERR;
5024 memset(&stat, 0, sizeof(stat));
5025 stat.un.b.lsRjtRsnCode = rjt_err;
5026 stat.un.b.lsRjtRsnCodeExp = rjt_expl;
5027 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5033 lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
5038 struct lpfc_iocbq *elsiocb;
5039 struct lpfc_nodelist *ndlp;
5040 struct ls_rjt *stat;
5041 union lpfc_sli4_cfg_shdr *shdr;
5042 struct lpfc_lcb_context *lcb_context;
5043 struct fc_lcb_res_frame *lcb_res;
5044 uint32_t cmdsize, shdr_status, shdr_add_status;
5048 lcb_context = (struct lpfc_lcb_context *)pmb->context1;
5049 ndlp = lcb_context->ndlp;
5050 pmb->context1 = NULL;
5051 pmb->context2 = NULL;
5053 shdr = (union lpfc_sli4_cfg_shdr *)
5054 &pmb->u.mqe.un.beacon_config.header.cfg_shdr;
5055 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5056 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5058 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX,
5059 "0194 SET_BEACON_CONFIG mailbox "
5060 "completed with status x%x add_status x%x,"
5061 " mbx status x%x\n",
5062 shdr_status, shdr_add_status, mb->mbxStatus);
5064 if (mb->mbxStatus && !(shdr_status &&
5065 shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)) {
5066 mempool_free(pmb, phba->mbox_mem_pool);
5070 mempool_free(pmb, phba->mbox_mem_pool);
5071 cmdsize = sizeof(struct fc_lcb_res_frame);
5072 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5073 lpfc_max_els_tries, ndlp,
5074 ndlp->nlp_DID, ELS_CMD_ACC);
5076 /* Decrement the ndlp reference count from previous mbox command */
5080 goto free_lcb_context;
5082 lcb_res = (struct fc_lcb_res_frame *)
5083 (((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5085 icmd = &elsiocb->iocb;
5086 icmd->ulpContext = lcb_context->rx_id;
5087 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5089 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5090 *((uint32_t *)(pcmd)) = ELS_CMD_ACC;
5091 lcb_res->lcb_sub_command = lcb_context->sub_command;
5092 lcb_res->lcb_type = lcb_context->type;
5093 lcb_res->lcb_frequency = lcb_context->frequency;
5094 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5095 phba->fc_stat.elsXmitACC++;
5096 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5097 if (rc == IOCB_ERROR)
5098 lpfc_els_free_iocb(phba, elsiocb);
5104 cmdsize = sizeof(struct fc_lcb_res_frame);
5105 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
5106 lpfc_max_els_tries, ndlp,
5107 ndlp->nlp_DID, ELS_CMD_LS_RJT);
5110 goto free_lcb_context;
5112 icmd = &elsiocb->iocb;
5113 icmd->ulpContext = lcb_context->rx_id;
5114 icmd->unsli3.rcvsli3.ox_id = lcb_context->ox_id;
5115 pcmd = (uint8_t *)(((struct lpfc_dmabuf *)elsiocb->context2)->virt);
5117 *((uint32_t *)(pcmd)) = ELS_CMD_LS_RJT;
5118 stat = (struct ls_rjt *)(pcmd + sizeof(uint32_t));
5119 stat->un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5121 if (shdr_add_status == ADD_STATUS_OPERATION_ALREADY_ACTIVE)
5122 stat->un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
5124 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
5125 phba->fc_stat.elsXmitLSRJT++;
5126 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
5127 if (rc == IOCB_ERROR)
5128 lpfc_els_free_iocb(phba, elsiocb);
5134 lpfc_sli4_set_beacon(struct lpfc_vport *vport,
5135 struct lpfc_lcb_context *lcb_context,
5136 uint32_t beacon_state)
5138 struct lpfc_hba *phba = vport->phba;
5139 LPFC_MBOXQ_t *mbox = NULL;
5143 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5147 len = sizeof(struct lpfc_mbx_set_beacon_config) -
5148 sizeof(struct lpfc_sli4_cfg_mhdr);
5149 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5150 LPFC_MBOX_OPCODE_SET_BEACON_CONFIG, len,
5151 LPFC_SLI4_MBX_EMBED);
5152 mbox->context1 = (void *)lcb_context;
5153 mbox->vport = phba->pport;
5154 mbox->mbox_cmpl = lpfc_els_lcb_rsp;
5155 bf_set(lpfc_mbx_set_beacon_port_num, &mbox->u.mqe.un.beacon_config,
5156 phba->sli4_hba.physical_port);
5157 bf_set(lpfc_mbx_set_beacon_state, &mbox->u.mqe.un.beacon_config,
5159 bf_set(lpfc_mbx_set_beacon_port_type, &mbox->u.mqe.un.beacon_config, 1);
5160 bf_set(lpfc_mbx_set_beacon_duration, &mbox->u.mqe.un.beacon_config, 0);
5161 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
5162 if (rc == MBX_NOT_FINISHED) {
5163 mempool_free(mbox, phba->mbox_mem_pool);
5172 * lpfc_els_rcv_lcb - Process an unsolicited LCB
5173 * @vport: pointer to a host virtual N_Port data structure.
5174 * @cmdiocb: pointer to lpfc command iocb data structure.
5175 * @ndlp: pointer to a node-list data structure.
5177 * This routine processes an unsolicited LCB(LINK CABLE BEACON) IOCB.
5178 * First, the payload of the unsolicited LCB is checked.
5179 * Then based on Subcommand beacon will either turn on or off.
5182 * 0 - Sent the acc response
5183 * 1 - Sent the reject response.
5186 lpfc_els_rcv_lcb(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5187 struct lpfc_nodelist *ndlp)
5189 struct lpfc_hba *phba = vport->phba;
5190 struct lpfc_dmabuf *pcmd;
5192 struct fc_lcb_request_frame *beacon;
5193 struct lpfc_lcb_context *lcb_context;
5194 uint8_t state, rjt_err;
5197 pcmd = (struct lpfc_dmabuf *)cmdiocb->context2;
5198 lp = (uint8_t *)pcmd->virt;
5199 beacon = (struct fc_lcb_request_frame *)pcmd->virt;
5201 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5202 "0192 ELS LCB Data x%x x%x x%x x%x sub x%x "
5203 "type x%x frequency %x duration x%x\n",
5204 lp[0], lp[1], lp[2],
5205 beacon->lcb_command,
5206 beacon->lcb_sub_command,
5208 beacon->lcb_frequency,
5209 be16_to_cpu(beacon->lcb_duration));
5211 if (phba->sli_rev < LPFC_SLI_REV4 ||
5212 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
5213 LPFC_SLI_INTF_IF_TYPE_2)) {
5214 rjt_err = LSRJT_CMD_UNSUPPORTED;
5218 if (phba->hba_flag & HBA_FCOE_MODE) {
5219 rjt_err = LSRJT_CMD_UNSUPPORTED;
5222 if (beacon->lcb_frequency == 0) {
5223 rjt_err = LSRJT_CMD_UNSUPPORTED;
5226 if ((beacon->lcb_type != LPFC_LCB_GREEN) &&
5227 (beacon->lcb_type != LPFC_LCB_AMBER)) {
5228 rjt_err = LSRJT_CMD_UNSUPPORTED;
5231 if ((beacon->lcb_sub_command != LPFC_LCB_ON) &&
5232 (beacon->lcb_sub_command != LPFC_LCB_OFF)) {
5233 rjt_err = LSRJT_CMD_UNSUPPORTED;
5236 if ((beacon->lcb_sub_command == LPFC_LCB_ON) &&
5237 (beacon->lcb_type != LPFC_LCB_GREEN) &&
5238 (beacon->lcb_type != LPFC_LCB_AMBER)) {
5239 rjt_err = LSRJT_CMD_UNSUPPORTED;
5242 if (be16_to_cpu(beacon->lcb_duration) != 0) {
5243 rjt_err = LSRJT_CMD_UNSUPPORTED;
5247 lcb_context = kmalloc(sizeof(*lcb_context), GFP_KERNEL);
5249 rjt_err = LSRJT_UNABLE_TPC;
5253 state = (beacon->lcb_sub_command == LPFC_LCB_ON) ? 1 : 0;
5254 lcb_context->sub_command = beacon->lcb_sub_command;
5255 lcb_context->type = beacon->lcb_type;
5256 lcb_context->frequency = beacon->lcb_frequency;
5257 lcb_context->ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
5258 lcb_context->rx_id = cmdiocb->iocb.ulpContext;
5259 lcb_context->ndlp = lpfc_nlp_get(ndlp);
5260 if (lpfc_sli4_set_beacon(vport, lcb_context, state)) {
5261 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
5262 LOG_ELS, "0193 failed to send mail box");
5265 rjt_err = LSRJT_UNABLE_TPC;
5270 memset(&stat, 0, sizeof(stat));
5271 stat.un.b.lsRjtRsnCode = rjt_err;
5272 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
5278 * lpfc_els_flush_rscn - Clean up any rscn activities with a vport
5279 * @vport: pointer to a host virtual N_Port data structure.
5281 * This routine cleans up any Registration State Change Notification
5282 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
5283 * @vport together with the host_lock is used to prevent multiple thread
5284 * trying to access the RSCN array on a same @vport at the same time.
5287 lpfc_els_flush_rscn(struct lpfc_vport *vport)
5289 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5290 struct lpfc_hba *phba = vport->phba;
5293 spin_lock_irq(shost->host_lock);
5294 if (vport->fc_rscn_flush) {
5295 /* Another thread is walking fc_rscn_id_list on this vport */
5296 spin_unlock_irq(shost->host_lock);
5299 /* Indicate we are walking lpfc_els_flush_rscn on this vport */
5300 vport->fc_rscn_flush = 1;
5301 spin_unlock_irq(shost->host_lock);
5303 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
5304 lpfc_in_buf_free(phba, vport->fc_rscn_id_list[i]);
5305 vport->fc_rscn_id_list[i] = NULL;
5307 spin_lock_irq(shost->host_lock);
5308 vport->fc_rscn_id_cnt = 0;
5309 vport->fc_flag &= ~(FC_RSCN_MODE | FC_RSCN_DISCOVERY);
5310 spin_unlock_irq(shost->host_lock);
5311 lpfc_can_disctmo(vport);
5312 /* Indicate we are done walking this fc_rscn_id_list */
5313 vport->fc_rscn_flush = 0;
5317 * lpfc_rscn_payload_check - Check whether there is a pending rscn to a did
5318 * @vport: pointer to a host virtual N_Port data structure.
5319 * @did: remote destination port identifier.
5321 * This routine checks whether there is any pending Registration State
5322 * Configuration Notification (RSCN) to a @did on @vport.
5325 * None zero - The @did matched with a pending rscn
5326 * 0 - not able to match @did with a pending rscn
5329 lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
5334 uint32_t payload_len, i;
5335 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5337 ns_did.un.word = did;
5339 /* Never match fabric nodes for RSCNs */
5340 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
5343 /* If we are doing a FULL RSCN rediscovery, match everything */
5344 if (vport->fc_flag & FC_RSCN_DISCOVERY)
5347 spin_lock_irq(shost->host_lock);
5348 if (vport->fc_rscn_flush) {
5349 /* Another thread is walking fc_rscn_id_list on this vport */
5350 spin_unlock_irq(shost->host_lock);
5353 /* Indicate we are walking fc_rscn_id_list on this vport */
5354 vport->fc_rscn_flush = 1;
5355 spin_unlock_irq(shost->host_lock);
5356 for (i = 0; i < vport->fc_rscn_id_cnt; i++) {
5357 lp = vport->fc_rscn_id_list[i]->virt;
5358 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5359 payload_len -= sizeof(uint32_t); /* take off word 0 */
5360 while (payload_len) {
5361 rscn_did.un.word = be32_to_cpu(*lp++);
5362 payload_len -= sizeof(uint32_t);
5363 switch (rscn_did.un.b.resv & RSCN_ADDRESS_FORMAT_MASK) {
5364 case RSCN_ADDRESS_FORMAT_PORT:
5365 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5366 && (ns_did.un.b.area == rscn_did.un.b.area)
5367 && (ns_did.un.b.id == rscn_did.un.b.id))
5368 goto return_did_out;
5370 case RSCN_ADDRESS_FORMAT_AREA:
5371 if ((ns_did.un.b.domain == rscn_did.un.b.domain)
5372 && (ns_did.un.b.area == rscn_did.un.b.area))
5373 goto return_did_out;
5375 case RSCN_ADDRESS_FORMAT_DOMAIN:
5376 if (ns_did.un.b.domain == rscn_did.un.b.domain)
5377 goto return_did_out;
5379 case RSCN_ADDRESS_FORMAT_FABRIC:
5380 goto return_did_out;
5384 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5385 vport->fc_rscn_flush = 0;
5388 /* Indicate we are done with walking fc_rscn_id_list on this vport */
5389 vport->fc_rscn_flush = 0;
5394 * lpfc_rscn_recovery_check - Send recovery event to vport nodes matching rscn
5395 * @vport: pointer to a host virtual N_Port data structure.
5397 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
5398 * state machine for a @vport's nodes that are with pending RSCN (Registration
5399 * State Change Notification).
5402 * 0 - Successful (currently alway return 0)
5405 lpfc_rscn_recovery_check(struct lpfc_vport *vport)
5407 struct lpfc_nodelist *ndlp = NULL;
5409 /* Move all affected nodes by pending RSCNs to NPR state. */
5410 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
5411 if (!NLP_CHK_NODE_ACT(ndlp) ||
5412 (ndlp->nlp_state == NLP_STE_UNUSED_NODE) ||
5413 !lpfc_rscn_payload_check(vport, ndlp->nlp_DID))
5415 lpfc_disc_state_machine(vport, ndlp, NULL,
5416 NLP_EVT_DEVICE_RECOVERY);
5417 lpfc_cancel_retry_delay_tmo(vport, ndlp);
5423 * lpfc_send_rscn_event - Send an RSCN event to management application
5424 * @vport: pointer to a host virtual N_Port data structure.
5425 * @cmdiocb: pointer to lpfc command iocb data structure.
5427 * lpfc_send_rscn_event sends an RSCN netlink event to management
5431 lpfc_send_rscn_event(struct lpfc_vport *vport,
5432 struct lpfc_iocbq *cmdiocb)
5434 struct lpfc_dmabuf *pcmd;
5435 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5436 uint32_t *payload_ptr;
5437 uint32_t payload_len;
5438 struct lpfc_rscn_event_header *rscn_event_data;
5440 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5441 payload_ptr = (uint32_t *) pcmd->virt;
5442 payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
5444 rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
5445 payload_len, GFP_KERNEL);
5446 if (!rscn_event_data) {
5447 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
5448 "0147 Failed to allocate memory for RSCN event\n");
5451 rscn_event_data->event_type = FC_REG_RSCN_EVENT;
5452 rscn_event_data->payload_length = payload_len;
5453 memcpy(rscn_event_data->rscn_payload, payload_ptr,
5456 fc_host_post_vendor_event(shost,
5457 fc_get_event_number(),
5458 sizeof(struct lpfc_rscn_event_header) + payload_len,
5459 (char *)rscn_event_data,
5462 kfree(rscn_event_data);
5466 * lpfc_els_rcv_rscn - Process an unsolicited rscn iocb
5467 * @vport: pointer to a host virtual N_Port data structure.
5468 * @cmdiocb: pointer to lpfc command iocb data structure.
5469 * @ndlp: pointer to a node-list data structure.
5471 * This routine processes an unsolicited RSCN (Registration State Change
5472 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
5473 * to invoke fc_host_post_event() routine to the FC transport layer. If the
5474 * discover state machine is about to begin discovery, it just accepts the
5475 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
5476 * contains N_Port IDs for other vports on this HBA, it just accepts the
5477 * RSCN and ignore processing it. If the state machine is in the recovery
5478 * state, the fc_rscn_id_list of this @vport is walked and the
5479 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
5480 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
5481 * routine is invoked to handle the RSCN event.
5484 * 0 - Just sent the acc response
5485 * 1 - Sent the acc response and waited for name server completion
5488 lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5489 struct lpfc_nodelist *ndlp)
5491 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5492 struct lpfc_hba *phba = vport->phba;
5493 struct lpfc_dmabuf *pcmd;
5494 uint32_t *lp, *datap;
5495 uint32_t payload_len, length, nportid, *cmd;
5497 int rscn_id = 0, hba_id = 0;
5500 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5501 lp = (uint32_t *) pcmd->virt;
5503 payload_len = be32_to_cpu(*lp++ & ~ELS_CMD_MASK);
5504 payload_len -= sizeof(uint32_t); /* take off word 0 */
5506 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5507 "0214 RSCN received Data: x%x x%x x%x x%x\n",
5508 vport->fc_flag, payload_len, *lp,
5509 vport->fc_rscn_id_cnt);
5511 /* Send an RSCN event to the management application */
5512 lpfc_send_rscn_event(vport, cmdiocb);
5514 for (i = 0; i < payload_len/sizeof(uint32_t); i++)
5515 fc_host_post_event(shost, fc_get_event_number(),
5516 FCH_EVT_RSCN, lp[i]);
5518 /* If we are about to begin discovery, just ACC the RSCN.
5519 * Discovery processing will satisfy it.
5521 if (vport->port_state <= LPFC_NS_QRY) {
5522 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5523 "RCV RSCN ignore: did:x%x/ste:x%x flg:x%x",
5524 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5526 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5530 /* If this RSCN just contains NPortIDs for other vports on this HBA,
5531 * just ACC and ignore it.
5533 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
5534 !(vport->cfg_peer_port_login)) {
5539 nportid = ((be32_to_cpu(nportid)) & Mask_DID);
5540 i -= sizeof(uint32_t);
5542 if (lpfc_find_vport_by_did(phba, nportid))
5545 if (rscn_id == hba_id) {
5546 /* ALL NPortIDs in RSCN are on HBA */
5547 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5549 "Data: x%x x%x x%x x%x\n",
5550 vport->fc_flag, payload_len,
5551 *lp, vport->fc_rscn_id_cnt);
5552 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5553 "RCV RSCN vport: did:x%x/ste:x%x flg:x%x",
5554 ndlp->nlp_DID, vport->port_state,
5557 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb,
5563 spin_lock_irq(shost->host_lock);
5564 if (vport->fc_rscn_flush) {
5565 /* Another thread is walking fc_rscn_id_list on this vport */
5566 vport->fc_flag |= FC_RSCN_DISCOVERY;
5567 spin_unlock_irq(shost->host_lock);
5569 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5572 /* Indicate we are walking fc_rscn_id_list on this vport */
5573 vport->fc_rscn_flush = 1;
5574 spin_unlock_irq(shost->host_lock);
5575 /* Get the array count after successfully have the token */
5576 rscn_cnt = vport->fc_rscn_id_cnt;
5577 /* If we are already processing an RSCN, save the received
5578 * RSCN payload buffer, cmdiocb->context2 to process later.
5580 if (vport->fc_flag & (FC_RSCN_MODE | FC_NDISC_ACTIVE)) {
5581 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5582 "RCV RSCN defer: did:x%x/ste:x%x flg:x%x",
5583 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5585 spin_lock_irq(shost->host_lock);
5586 vport->fc_flag |= FC_RSCN_DEFERRED;
5587 if ((rscn_cnt < FC_MAX_HOLD_RSCN) &&
5588 !(vport->fc_flag & FC_RSCN_DISCOVERY)) {
5589 vport->fc_flag |= FC_RSCN_MODE;
5590 spin_unlock_irq(shost->host_lock);
5592 cmd = vport->fc_rscn_id_list[rscn_cnt-1]->virt;
5593 length = be32_to_cpu(*cmd & ~ELS_CMD_MASK);
5596 (payload_len + length <= LPFC_BPL_SIZE)) {
5597 *cmd &= ELS_CMD_MASK;
5598 *cmd |= cpu_to_be32(payload_len + length);
5599 memcpy(((uint8_t *)cmd) + length, lp,
5602 vport->fc_rscn_id_list[rscn_cnt] = pcmd;
5603 vport->fc_rscn_id_cnt++;
5604 /* If we zero, cmdiocb->context2, the calling
5605 * routine will not try to free it.
5607 cmdiocb->context2 = NULL;
5610 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5611 "0235 Deferred RSCN "
5612 "Data: x%x x%x x%x\n",
5613 vport->fc_rscn_id_cnt, vport->fc_flag,
5616 vport->fc_flag |= FC_RSCN_DISCOVERY;
5617 spin_unlock_irq(shost->host_lock);
5618 /* ReDiscovery RSCN */
5619 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5620 "0234 ReDiscovery RSCN "
5621 "Data: x%x x%x x%x\n",
5622 vport->fc_rscn_id_cnt, vport->fc_flag,
5625 /* Indicate we are done walking fc_rscn_id_list on this vport */
5626 vport->fc_rscn_flush = 0;
5628 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5629 /* send RECOVERY event for ALL nodes that match RSCN payload */
5630 lpfc_rscn_recovery_check(vport);
5631 spin_lock_irq(shost->host_lock);
5632 vport->fc_flag &= ~FC_RSCN_DEFERRED;
5633 spin_unlock_irq(shost->host_lock);
5636 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
5637 "RCV RSCN: did:x%x/ste:x%x flg:x%x",
5638 ndlp->nlp_DID, vport->port_state, ndlp->nlp_flag);
5640 spin_lock_irq(shost->host_lock);
5641 vport->fc_flag |= FC_RSCN_MODE;
5642 spin_unlock_irq(shost->host_lock);
5643 vport->fc_rscn_id_list[vport->fc_rscn_id_cnt++] = pcmd;
5644 /* Indicate we are done walking fc_rscn_id_list on this vport */
5645 vport->fc_rscn_flush = 0;
5647 * If we zero, cmdiocb->context2, the calling routine will
5648 * not try to free it.
5650 cmdiocb->context2 = NULL;
5651 lpfc_set_disctmo(vport);
5653 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
5654 /* send RECOVERY event for ALL nodes that match RSCN payload */
5655 lpfc_rscn_recovery_check(vport);
5656 return lpfc_els_handle_rscn(vport);
5660 * lpfc_els_handle_rscn - Handle rscn for a vport
5661 * @vport: pointer to a host virtual N_Port data structure.
5663 * This routine handles the Registration State Configuration Notification
5664 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
5665 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
5666 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
5667 * NameServer shall be issued. If CT command to the NameServer fails to be
5668 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
5669 * RSCN activities with the @vport.
5672 * 0 - Cleaned up rscn on the @vport
5673 * 1 - Wait for plogi to name server before proceed
5676 lpfc_els_handle_rscn(struct lpfc_vport *vport)
5678 struct lpfc_nodelist *ndlp;
5679 struct lpfc_hba *phba = vport->phba;
5681 /* Ignore RSCN if the port is being torn down. */
5682 if (vport->load_flag & FC_UNLOADING) {
5683 lpfc_els_flush_rscn(vport);
5687 /* Start timer for RSCN processing */
5688 lpfc_set_disctmo(vport);
5690 /* RSCN processed */
5691 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
5692 "0215 RSCN processed Data: x%x x%x x%x x%x\n",
5693 vport->fc_flag, 0, vport->fc_rscn_id_cnt,
5696 /* To process RSCN, first compare RSCN data with NameServer */
5697 vport->fc_ns_retry = 0;
5698 vport->num_disc_nodes = 0;
5700 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5701 if (ndlp && NLP_CHK_NODE_ACT(ndlp)
5702 && ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) {
5703 /* Good ndlp, issue CT Request to NameServer */
5704 if (lpfc_ns_cmd(vport, SLI_CTNS_GID_FT, 0, 0) == 0)
5705 /* Wait for NameServer query cmpl before we can
5709 /* If login to NameServer does not exist, issue one */
5710 /* Good status, issue PLOGI to NameServer */
5711 ndlp = lpfc_findnode_did(vport, NameServer_DID);
5712 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
5713 /* Wait for NameServer login cmpl before we can
5718 ndlp = lpfc_enable_node(vport, ndlp,
5719 NLP_STE_PLOGI_ISSUE);
5721 lpfc_els_flush_rscn(vport);
5724 ndlp->nlp_prev_state = NLP_STE_UNUSED_NODE;
5726 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
5728 lpfc_els_flush_rscn(vport);
5731 lpfc_nlp_init(vport, ndlp, NameServer_DID);
5732 ndlp->nlp_prev_state = ndlp->nlp_state;
5733 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
5735 ndlp->nlp_type |= NLP_FABRIC;
5736 lpfc_issue_els_plogi(vport, NameServer_DID, 0);
5737 /* Wait for NameServer login cmpl before we can
5743 lpfc_els_flush_rscn(vport);
5748 * lpfc_els_rcv_flogi - Process an unsolicited flogi iocb
5749 * @vport: pointer to a host virtual N_Port data structure.
5750 * @cmdiocb: pointer to lpfc command iocb data structure.
5751 * @ndlp: pointer to a node-list data structure.
5753 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
5754 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
5755 * point topology. As an unsolicited FLOGI should not be received in a loop
5756 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
5757 * lpfc_check_sparm() routine is invoked to check the parameters in the
5758 * unsolicited FLOGI. If parameters validation failed, the routine
5759 * lpfc_els_rsp_reject() shall be called with reject reason code set to
5760 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
5761 * FLOGI shall be compared with the Port WWN of the @vport to determine who
5762 * will initiate PLOGI. The higher lexicographical value party shall has
5763 * higher priority (as the winning port) and will initiate PLOGI and
5764 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
5765 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
5766 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
5769 * 0 - Successfully processed the unsolicited flogi
5770 * 1 - Failed to process the unsolicited flogi
5773 lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5774 struct lpfc_nodelist *ndlp)
5776 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5777 struct lpfc_hba *phba = vport->phba;
5778 struct lpfc_dmabuf *pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5779 uint32_t *lp = (uint32_t *) pcmd->virt;
5780 IOCB_t *icmd = &cmdiocb->iocb;
5781 struct serv_parm *sp;
5785 uint32_t fc_flag = 0;
5786 uint32_t port_state = 0;
5789 sp = (struct serv_parm *) lp;
5791 /* FLOGI received */
5793 lpfc_set_disctmo(vport);
5795 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
5796 /* We should never receive a FLOGI in loop mode, ignore it */
5797 did = icmd->un.elsreq64.remoteID;
5799 /* An FLOGI ELS command <elsCmd> was received from DID <did> in
5801 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
5802 "0113 An FLOGI ELS command x%x was "
5803 "received from DID x%x in Loop Mode\n",
5808 (void) lpfc_check_sparm(vport, ndlp, sp, CLASS3, 1);
5812 * If our portname is greater than the remote portname,
5813 * then we initiate Nport login.
5816 rc = memcmp(&vport->fc_portname, &sp->portName,
5817 sizeof(struct lpfc_name));
5820 if (phba->sli_rev < LPFC_SLI_REV4) {
5821 mbox = mempool_alloc(phba->mbox_mem_pool,
5825 lpfc_linkdown(phba);
5826 lpfc_init_link(phba, mbox,
5828 phba->cfg_link_speed);
5829 mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
5830 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
5831 mbox->vport = vport;
5832 rc = lpfc_sli_issue_mbox(phba, mbox,
5834 lpfc_set_loopback_flag(phba);
5835 if (rc == MBX_NOT_FINISHED)
5836 mempool_free(mbox, phba->mbox_mem_pool);
5840 /* abort the flogi coming back to ourselves
5841 * due to external loopback on the port.
5843 lpfc_els_abort_flogi(phba);
5846 } else if (rc > 0) { /* greater than */
5847 spin_lock_irq(shost->host_lock);
5848 vport->fc_flag |= FC_PT2PT_PLOGI;
5849 spin_unlock_irq(shost->host_lock);
5851 /* If we have the high WWPN we can assign our own
5852 * myDID; otherwise, we have to WAIT for a PLOGI
5853 * from the remote NPort to find out what it
5856 vport->fc_myDID = PT2PT_LocalID;
5858 vport->fc_myDID = PT2PT_RemoteID;
5862 * The vport state should go to LPFC_FLOGI only
5863 * AFTER we issue a FLOGI, not receive one.
5865 spin_lock_irq(shost->host_lock);
5866 fc_flag = vport->fc_flag;
5867 port_state = vport->port_state;
5868 vport->fc_flag |= FC_PT2PT;
5869 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
5870 spin_unlock_irq(shost->host_lock);
5871 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
5872 "3311 Rcv Flogi PS x%x new PS x%x "
5873 "fc_flag x%x new fc_flag x%x\n",
5874 port_state, vport->port_state,
5875 fc_flag, vport->fc_flag);
5878 * We temporarily set fc_myDID to make it look like we are
5879 * a Fabric. This is done just so we end up with the right
5880 * did / sid on the FLOGI ACC rsp.
5882 did = vport->fc_myDID;
5883 vport->fc_myDID = Fabric_DID;
5885 memcpy(&phba->fc_fabparam, sp, sizeof(struct serv_parm));
5888 lpfc_els_rsp_acc(vport, ELS_CMD_FLOGI, cmdiocb, ndlp, NULL);
5890 /* Now lets put fc_myDID back to what its supposed to be */
5891 vport->fc_myDID = did;
5897 * lpfc_els_rcv_rnid - Process an unsolicited rnid iocb
5898 * @vport: pointer to a host virtual N_Port data structure.
5899 * @cmdiocb: pointer to lpfc command iocb data structure.
5900 * @ndlp: pointer to a node-list data structure.
5902 * This routine processes Request Node Identification Data (RNID) IOCB
5903 * received as an ELS unsolicited event. Only when the RNID specified format
5904 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
5905 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
5906 * Accept (ACC) the RNID ELS command. All the other RNID formats are
5907 * rejected by invoking the lpfc_els_rsp_reject() routine.
5910 * 0 - Successfully processed rnid iocb (currently always return 0)
5913 lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5914 struct lpfc_nodelist *ndlp)
5916 struct lpfc_dmabuf *pcmd;
5922 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
5923 lp = (uint32_t *) pcmd->virt;
5930 switch (rn->Format) {
5932 case RNID_TOPOLOGY_DISC:
5934 lpfc_els_rsp_rnid_acc(vport, rn->Format, cmdiocb, ndlp);
5937 /* Reject this request because format not supported */
5938 stat.un.b.lsRjtRsvd0 = 0;
5939 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5940 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
5941 stat.un.b.vendorUnique = 0;
5942 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
5949 * lpfc_els_rcv_echo - Process an unsolicited echo iocb
5950 * @vport: pointer to a host virtual N_Port data structure.
5951 * @cmdiocb: pointer to lpfc command iocb data structure.
5952 * @ndlp: pointer to a node-list data structure.
5955 * 0 - Successfully processed echo iocb (currently always return 0)
5958 lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5959 struct lpfc_nodelist *ndlp)
5963 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
5965 /* skip over first word of echo command to find echo data */
5966 pcmd += sizeof(uint32_t);
5968 lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp);
5973 * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
5974 * @vport: pointer to a host virtual N_Port data structure.
5975 * @cmdiocb: pointer to lpfc command iocb data structure.
5976 * @ndlp: pointer to a node-list data structure.
5978 * This routine processes a Link Incident Report Registration(LIRR) IOCB
5979 * received as an ELS unsolicited event. Currently, this function just invokes
5980 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
5983 * 0 - Successfully processed lirr iocb (currently always return 0)
5986 lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
5987 struct lpfc_nodelist *ndlp)
5991 /* For now, unconditionally reject this command */
5992 stat.un.b.lsRjtRsvd0 = 0;
5993 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
5994 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
5995 stat.un.b.vendorUnique = 0;
5996 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6001 * lpfc_els_rcv_rrq - Process an unsolicited rrq iocb
6002 * @vport: pointer to a host virtual N_Port data structure.
6003 * @cmdiocb: pointer to lpfc command iocb data structure.
6004 * @ndlp: pointer to a node-list data structure.
6006 * This routine processes a Reinstate Recovery Qualifier (RRQ) IOCB
6007 * received as an ELS unsolicited event. A request to RRQ shall only
6008 * be accepted if the Originator Nx_Port N_Port_ID or the Responder
6009 * Nx_Port N_Port_ID of the target Exchange is the same as the
6010 * N_Port_ID of the Nx_Port that makes the request. If the RRQ is
6011 * not accepted, an LS_RJT with reason code "Unable to perform
6012 * command request" and reason code explanation "Invalid Originator
6013 * S_ID" shall be returned. For now, we just unconditionally accept
6014 * RRQ from the target.
6017 lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6018 struct lpfc_nodelist *ndlp)
6020 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6021 if (vport->phba->sli_rev == LPFC_SLI_REV4)
6022 lpfc_els_clear_rrq(vport, cmdiocb, ndlp);
6026 * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6027 * @phba: pointer to lpfc hba data structure.
6028 * @pmb: pointer to the driver internal queue element for mailbox command.
6030 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6031 * mailbox command. This callback function is to actually send the Accept
6032 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6033 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6034 * mailbox command, constructs the RPS response with the link statistics
6035 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6036 * response to the RPS.
6038 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6039 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6040 * will be stored into the context1 field of the IOCB for the completion
6041 * callback function to the RPS Accept Response ELS IOCB command.
6045 lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6049 struct RLS_RSP *rls_rsp;
6051 struct lpfc_iocbq *elsiocb;
6052 struct lpfc_nodelist *ndlp;
6059 ndlp = (struct lpfc_nodelist *) pmb->context2;
6060 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6061 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
6062 pmb->context1 = NULL;
6063 pmb->context2 = NULL;
6065 if (mb->mbxStatus) {
6066 mempool_free(pmb, phba->mbox_mem_pool);
6070 cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t);
6071 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6072 lpfc_max_els_tries, ndlp,
6073 ndlp->nlp_DID, ELS_CMD_ACC);
6075 /* Decrement the ndlp reference count from previous mbox command */
6079 mempool_free(pmb, phba->mbox_mem_pool);
6083 icmd = &elsiocb->iocb;
6084 icmd->ulpContext = rxid;
6085 icmd->unsli3.rcvsli3.ox_id = oxid;
6087 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6088 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6089 pcmd += sizeof(uint32_t); /* Skip past command */
6090 rls_rsp = (struct RLS_RSP *)pcmd;
6092 rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6093 rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6094 rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6095 rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6096 rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6097 rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
6098 mempool_free(pmb, phba->mbox_mem_pool);
6099 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6100 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6101 "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
6102 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6103 elsiocb->iotag, elsiocb->iocb.ulpContext,
6104 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6106 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6107 phba->fc_stat.elsXmitACC++;
6108 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6109 lpfc_els_free_iocb(phba, elsiocb);
6113 * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
6114 * @phba: pointer to lpfc hba data structure.
6115 * @pmb: pointer to the driver internal queue element for mailbox command.
6117 * This routine is the completion callback function for the MBX_READ_LNK_STAT
6118 * mailbox command. This callback function is to actually send the Accept
6119 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
6120 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
6121 * mailbox command, constructs the RPS response with the link statistics
6122 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
6123 * response to the RPS.
6125 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6126 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6127 * will be stored into the context1 field of the IOCB for the completion
6128 * callback function to the RPS Accept Response ELS IOCB command.
6132 lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6138 struct lpfc_iocbq *elsiocb;
6139 struct lpfc_nodelist *ndlp;
6147 ndlp = (struct lpfc_nodelist *) pmb->context2;
6148 rxid = (uint16_t) ((unsigned long)(pmb->context1) & 0xffff);
6149 oxid = (uint16_t) (((unsigned long)(pmb->context1) >> 16) & 0xffff);
6150 pmb->context1 = NULL;
6151 pmb->context2 = NULL;
6153 if (mb->mbxStatus) {
6154 mempool_free(pmb, phba->mbox_mem_pool);
6158 cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
6159 mempool_free(pmb, phba->mbox_mem_pool);
6160 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6161 lpfc_max_els_tries, ndlp,
6162 ndlp->nlp_DID, ELS_CMD_ACC);
6164 /* Decrement the ndlp reference count from previous mbox command */
6170 icmd = &elsiocb->iocb;
6171 icmd->ulpContext = rxid;
6172 icmd->unsli3.rcvsli3.ox_id = oxid;
6174 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6175 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6176 pcmd += sizeof(uint32_t); /* Skip past command */
6177 rps_rsp = (RPS_RSP *)pcmd;
6179 if (phba->fc_topology != LPFC_TOPOLOGY_LOOP)
6183 if (phba->pport->fc_flag & FC_FABRIC)
6187 rps_rsp->portStatus = cpu_to_be16(status);
6188 rps_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
6189 rps_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
6190 rps_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
6191 rps_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
6192 rps_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
6193 rps_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
6194 /* Xmit ELS RPS ACC response tag <ulpIoTag> */
6195 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6196 "0118 Xmit ELS RPS ACC response tag x%x xri x%x, "
6197 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
6198 elsiocb->iotag, elsiocb->iocb.ulpContext,
6199 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6201 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6202 phba->fc_stat.elsXmitACC++;
6203 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6204 lpfc_els_free_iocb(phba, elsiocb);
6209 * lpfc_els_rcv_rls - Process an unsolicited rls iocb
6210 * @vport: pointer to a host virtual N_Port data structure.
6211 * @cmdiocb: pointer to lpfc command iocb data structure.
6212 * @ndlp: pointer to a node-list data structure.
6214 * This routine processes Read Port Status (RPL) IOCB received as an
6215 * ELS unsolicited event. It first checks the remote port state. If the
6216 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6217 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6218 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6219 * for reading the HBA link statistics. It is for the callback function,
6220 * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
6221 * to actually sending out RPL Accept (ACC) response.
6224 * 0 - Successfully processed rls iocb (currently always return 0)
6227 lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6228 struct lpfc_nodelist *ndlp)
6230 struct lpfc_hba *phba = vport->phba;
6234 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6235 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6236 /* reject the unsolicited RPS request and done with it */
6239 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6241 lpfc_read_lnk_stat(phba, mbox);
6242 mbox->context1 = (void *)((unsigned long)
6243 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6244 cmdiocb->iocb.ulpContext)); /* rx_id */
6245 mbox->context2 = lpfc_nlp_get(ndlp);
6246 mbox->vport = vport;
6247 mbox->mbox_cmpl = lpfc_els_rsp_rls_acc;
6248 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6249 != MBX_NOT_FINISHED)
6250 /* Mbox completion will send ELS Response */
6252 /* Decrement reference count used for the failed mbox
6256 mempool_free(mbox, phba->mbox_mem_pool);
6259 /* issue rejection response */
6260 stat.un.b.lsRjtRsvd0 = 0;
6261 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6262 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6263 stat.un.b.vendorUnique = 0;
6264 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6269 * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
6270 * @vport: pointer to a host virtual N_Port data structure.
6271 * @cmdiocb: pointer to lpfc command iocb data structure.
6272 * @ndlp: pointer to a node-list data structure.
6274 * This routine processes Read Timout Value (RTV) IOCB received as an
6275 * ELS unsolicited event. It first checks the remote port state. If the
6276 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6277 * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
6278 * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
6279 * Value (RTV) unsolicited IOCB event.
6281 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6282 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6283 * will be stored into the context1 field of the IOCB for the completion
6284 * callback function to the RPS Accept Response ELS IOCB command.
6287 * 0 - Successfully processed rtv iocb (currently always return 0)
6290 lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6291 struct lpfc_nodelist *ndlp)
6293 struct lpfc_hba *phba = vport->phba;
6295 struct RTV_RSP *rtv_rsp;
6297 struct lpfc_iocbq *elsiocb;
6301 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6302 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6303 /* reject the unsolicited RPS request and done with it */
6306 cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t);
6307 elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
6308 lpfc_max_els_tries, ndlp,
6309 ndlp->nlp_DID, ELS_CMD_ACC);
6314 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6315 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6316 pcmd += sizeof(uint32_t); /* Skip past command */
6318 /* use the command's xri in the response */
6319 elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext; /* Xri / rx_id */
6320 elsiocb->iocb.unsli3.rcvsli3.ox_id = cmdiocb->iocb.unsli3.rcvsli3.ox_id;
6322 rtv_rsp = (struct RTV_RSP *)pcmd;
6324 /* populate RTV payload */
6325 rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */
6326 rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov);
6327 bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0);
6328 bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */
6329 rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov);
6331 /* Xmit ELS RLS ACC response tag <ulpIoTag> */
6332 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
6333 "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
6334 "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
6335 "Data: x%x x%x x%x\n",
6336 elsiocb->iotag, elsiocb->iocb.ulpContext,
6337 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6339 rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov);
6340 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6341 phba->fc_stat.elsXmitACC++;
6342 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
6343 lpfc_els_free_iocb(phba, elsiocb);
6347 /* issue rejection response */
6348 stat.un.b.lsRjtRsvd0 = 0;
6349 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6350 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6351 stat.un.b.vendorUnique = 0;
6352 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6356 /* lpfc_els_rcv_rps - Process an unsolicited rps iocb
6357 * @vport: pointer to a host virtual N_Port data structure.
6358 * @cmdiocb: pointer to lpfc command iocb data structure.
6359 * @ndlp: pointer to a node-list data structure.
6361 * This routine processes Read Port Status (RPS) IOCB received as an
6362 * ELS unsolicited event. It first checks the remote port state. If the
6363 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
6364 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
6365 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
6366 * for reading the HBA link statistics. It is for the callback function,
6367 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
6368 * to actually sending out RPS Accept (ACC) response.
6371 * 0 - Successfully processed rps iocb (currently always return 0)
6374 lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6375 struct lpfc_nodelist *ndlp)
6377 struct lpfc_hba *phba = vport->phba;
6381 struct lpfc_dmabuf *pcmd;
6385 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6386 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
6387 /* reject the unsolicited RPS request and done with it */
6390 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6391 lp = (uint32_t *) pcmd->virt;
6392 flag = (be32_to_cpu(*lp++) & 0xf);
6396 ((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
6397 ((flag == 2) && (memcmp(&rps->un.portName, &vport->fc_portname,
6398 sizeof(struct lpfc_name)) == 0))) {
6400 printk("Fix me....\n");
6402 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
6404 lpfc_read_lnk_stat(phba, mbox);
6405 mbox->context1 = (void *)((unsigned long)
6406 ((cmdiocb->iocb.unsli3.rcvsli3.ox_id << 16) |
6407 cmdiocb->iocb.ulpContext)); /* rx_id */
6408 mbox->context2 = lpfc_nlp_get(ndlp);
6409 mbox->vport = vport;
6410 mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
6411 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
6412 != MBX_NOT_FINISHED)
6413 /* Mbox completion will send ELS Response */
6415 /* Decrement reference count used for the failed mbox
6419 mempool_free(mbox, phba->mbox_mem_pool);
6424 /* issue rejection response */
6425 stat.un.b.lsRjtRsvd0 = 0;
6426 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6427 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6428 stat.un.b.vendorUnique = 0;
6429 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
6433 /* lpfc_issue_els_rrq - Process an unsolicited rps iocb
6434 * @vport: pointer to a host virtual N_Port data structure.
6435 * @ndlp: pointer to a node-list data structure.
6436 * @did: DID of the target.
6437 * @rrq: Pointer to the rrq struct.
6439 * Build a ELS RRQ command and send it to the target. If the issue_iocb is
6440 * Successful the the completion handler will clear the RRQ.
6443 * 0 - Successfully sent rrq els iocb.
6444 * 1 - Failed to send rrq els iocb.
6447 lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
6448 uint32_t did, struct lpfc_node_rrq *rrq)
6450 struct lpfc_hba *phba = vport->phba;
6451 struct RRQ *els_rrq;
6452 struct lpfc_iocbq *elsiocb;
6458 if (ndlp != rrq->ndlp)
6460 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
6463 /* If ndlp is not NULL, we will bump the reference count on it */
6464 cmdsize = (sizeof(uint32_t) + sizeof(struct RRQ));
6465 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, did,
6470 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6472 /* For RRQ request, remainder of payload is Exchange IDs */
6473 *((uint32_t *) (pcmd)) = ELS_CMD_RRQ;
6474 pcmd += sizeof(uint32_t);
6475 els_rrq = (struct RRQ *) pcmd;
6477 bf_set(rrq_oxid, els_rrq, phba->sli4_hba.xri_ids[rrq->xritag]);
6478 bf_set(rrq_rxid, els_rrq, rrq->rxid);
6479 bf_set(rrq_did, els_rrq, vport->fc_myDID);
6480 els_rrq->rrq = cpu_to_be32(els_rrq->rrq);
6481 els_rrq->rrq_exchg = cpu_to_be32(els_rrq->rrq_exchg);
6484 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
6485 "Issue RRQ: did:x%x",
6486 did, rrq->xritag, rrq->rxid);
6487 elsiocb->context_un.rrq = rrq;
6488 elsiocb->iocb_cmpl = lpfc_cmpl_els_rrq;
6489 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
6491 if (ret == IOCB_ERROR) {
6492 lpfc_els_free_iocb(phba, elsiocb);
6499 * lpfc_send_rrq - Sends ELS RRQ if needed.
6500 * @phba: pointer to lpfc hba data structure.
6501 * @rrq: pointer to the active rrq.
6503 * This routine will call the lpfc_issue_els_rrq if the rrq is
6504 * still active for the xri. If this function returns a failure then
6505 * the caller needs to clean up the RRQ by calling lpfc_clr_active_rrq.
6507 * Returns 0 Success.
6511 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
6513 struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
6518 if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
6519 return lpfc_issue_els_rrq(rrq->vport, ndlp,
6526 * lpfc_els_rsp_rpl_acc - Issue an accept rpl els command
6527 * @vport: pointer to a host virtual N_Port data structure.
6528 * @cmdsize: size of the ELS command.
6529 * @oldiocb: pointer to the original lpfc command iocb data structure.
6530 * @ndlp: pointer to a node-list data structure.
6532 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
6533 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
6535 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6536 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6537 * will be stored into the context1 field of the IOCB for the completion
6538 * callback function to the RPL Accept Response ELS command.
6541 * 0 - Successfully issued ACC RPL ELS command
6542 * 1 - Failed to issue ACC RPL ELS command
6545 lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
6546 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
6548 struct lpfc_hba *phba = vport->phba;
6549 IOCB_t *icmd, *oldcmd;
6551 struct lpfc_iocbq *elsiocb;
6554 elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
6555 ndlp->nlp_DID, ELS_CMD_ACC);
6560 icmd = &elsiocb->iocb;
6561 oldcmd = &oldiocb->iocb;
6562 icmd->ulpContext = oldcmd->ulpContext; /* Xri / rx_id */
6563 icmd->unsli3.rcvsli3.ox_id = oldcmd->unsli3.rcvsli3.ox_id;
6565 pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
6566 *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
6567 pcmd += sizeof(uint16_t);
6568 *((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
6569 pcmd += sizeof(uint16_t);
6571 /* Setup the RPL ACC payload */
6572 rpl_rsp.listLen = be32_to_cpu(1);
6574 rpl_rsp.port_num_blk.portNum = 0;
6575 rpl_rsp.port_num_blk.portID = be32_to_cpu(vport->fc_myDID);
6576 memcpy(&rpl_rsp.port_num_blk.portName, &vport->fc_portname,
6577 sizeof(struct lpfc_name));
6578 memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
6579 /* Xmit ELS RPL ACC response tag <ulpIoTag> */
6580 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6581 "0120 Xmit ELS RPL ACC response tag x%x "
6582 "xri x%x, did x%x, nlp_flag x%x, nlp_state x%x, "
6584 elsiocb->iotag, elsiocb->iocb.ulpContext,
6585 ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
6587 elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
6588 phba->fc_stat.elsXmitACC++;
6589 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
6591 lpfc_els_free_iocb(phba, elsiocb);
6598 * lpfc_els_rcv_rpl - Process an unsolicited rpl iocb
6599 * @vport: pointer to a host virtual N_Port data structure.
6600 * @cmdiocb: pointer to lpfc command iocb data structure.
6601 * @ndlp: pointer to a node-list data structure.
6603 * This routine processes Read Port List (RPL) IOCB received as an ELS
6604 * unsolicited event. It first checks the remote port state. If the remote
6605 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
6606 * invokes the lpfc_els_rsp_reject() routine to send reject response.
6607 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
6608 * to accept the RPL.
6611 * 0 - Successfully processed rpl iocb (currently always return 0)
6614 lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6615 struct lpfc_nodelist *ndlp)
6617 struct lpfc_dmabuf *pcmd;
6624 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
6625 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
6626 /* issue rejection response */
6627 stat.un.b.lsRjtRsvd0 = 0;
6628 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
6629 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
6630 stat.un.b.vendorUnique = 0;
6631 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
6633 /* rejected the unsolicited RPL request and done with it */
6637 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6638 lp = (uint32_t *) pcmd->virt;
6639 rpl = (RPL *) (lp + 1);
6640 maxsize = be32_to_cpu(rpl->maxsize);
6642 /* We support only one port */
6643 if ((rpl->index == 0) &&
6645 ((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
6646 cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
6648 cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
6650 lpfc_els_rsp_rpl_acc(vport, cmdsize, cmdiocb, ndlp);
6656 * lpfc_els_rcv_farp - Process an unsolicited farp request els command
6657 * @vport: pointer to a virtual N_Port data structure.
6658 * @cmdiocb: pointer to lpfc command iocb data structure.
6659 * @ndlp: pointer to a node-list data structure.
6661 * This routine processes Fibre Channel Address Resolution Protocol
6662 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
6663 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
6664 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
6665 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
6666 * remote PortName is compared against the FC PortName stored in the @vport
6667 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
6668 * compared against the FC NodeName stored in the @vport data structure.
6669 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
6670 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
6671 * invoked to send out FARP Response to the remote node. Before sending the
6672 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
6673 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
6674 * routine is invoked to log into the remote port first.
6677 * 0 - Either the FARP Match Mode not supported or successfully processed
6680 lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6681 struct lpfc_nodelist *ndlp)
6683 struct lpfc_dmabuf *pcmd;
6687 uint32_t cmd, cnt, did;
6689 icmd = &cmdiocb->iocb;
6690 did = icmd->un.elsreq64.remoteID;
6691 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6692 lp = (uint32_t *) pcmd->virt;
6696 /* FARP-REQ received from DID <did> */
6697 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6698 "0601 FARP-REQ received from DID x%x\n", did);
6699 /* We will only support match on WWPN or WWNN */
6700 if (fp->Mflags & ~(FARP_MATCH_NODE | FARP_MATCH_PORT)) {
6705 /* If this FARP command is searching for my portname */
6706 if (fp->Mflags & FARP_MATCH_PORT) {
6707 if (memcmp(&fp->RportName, &vport->fc_portname,
6708 sizeof(struct lpfc_name)) == 0)
6712 /* If this FARP command is searching for my nodename */
6713 if (fp->Mflags & FARP_MATCH_NODE) {
6714 if (memcmp(&fp->RnodeName, &vport->fc_nodename,
6715 sizeof(struct lpfc_name)) == 0)
6720 if ((ndlp->nlp_state == NLP_STE_UNMAPPED_NODE) ||
6721 (ndlp->nlp_state == NLP_STE_MAPPED_NODE)) {
6722 /* Log back into the node before sending the FARP. */
6723 if (fp->Rflags & FARP_REQUEST_PLOGI) {
6724 ndlp->nlp_prev_state = ndlp->nlp_state;
6725 lpfc_nlp_set_state(vport, ndlp,
6726 NLP_STE_PLOGI_ISSUE);
6727 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
6730 /* Send a FARP response to that node */
6731 if (fp->Rflags & FARP_REQUEST_FARPR)
6732 lpfc_issue_els_farpr(vport, did, 0);
6739 * lpfc_els_rcv_farpr - Process an unsolicited farp response iocb
6740 * @vport: pointer to a host virtual N_Port data structure.
6741 * @cmdiocb: pointer to lpfc command iocb data structure.
6742 * @ndlp: pointer to a node-list data structure.
6744 * This routine processes Fibre Channel Address Resolution Protocol
6745 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
6746 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
6747 * the FARP response request.
6750 * 0 - Successfully processed FARPR IOCB (currently always return 0)
6753 lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6754 struct lpfc_nodelist *ndlp)
6756 struct lpfc_dmabuf *pcmd;
6761 icmd = &cmdiocb->iocb;
6762 did = icmd->un.elsreq64.remoteID;
6763 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
6764 lp = (uint32_t *) pcmd->virt;
6767 /* FARP-RSP received from DID <did> */
6768 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6769 "0600 FARP-RSP received from DID x%x\n", did);
6770 /* ACCEPT the Farp resp request */
6771 lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
6777 * lpfc_els_rcv_fan - Process an unsolicited fan iocb command
6778 * @vport: pointer to a host virtual N_Port data structure.
6779 * @cmdiocb: pointer to lpfc command iocb data structure.
6780 * @fan_ndlp: pointer to a node-list data structure.
6782 * This routine processes a Fabric Address Notification (FAN) IOCB
6783 * command received as an ELS unsolicited event. The FAN ELS command will
6784 * only be processed on a physical port (i.e., the @vport represents the
6785 * physical port). The fabric NodeName and PortName from the FAN IOCB are
6786 * compared against those in the phba data structure. If any of those is
6787 * different, the lpfc_initial_flogi() routine is invoked to initialize
6788 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
6789 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
6790 * is invoked to register login to the fabric.
6793 * 0 - Successfully processed fan iocb (currently always return 0).
6796 lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
6797 struct lpfc_nodelist *fan_ndlp)
6799 struct lpfc_hba *phba = vport->phba;
6803 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, "0265 FAN received\n");
6804 lp = (uint32_t *)((struct lpfc_dmabuf *)cmdiocb->context2)->virt;
6806 /* FAN received; Fan does not have a reply sequence */
6807 if ((vport == phba->pport) &&
6808 (vport->port_state == LPFC_LOCAL_CFG_LINK)) {
6809 if ((memcmp(&phba->fc_fabparam.nodeName, &fp->FnodeName,
6810 sizeof(struct lpfc_name))) ||
6811 (memcmp(&phba->fc_fabparam.portName, &fp->FportName,
6812 sizeof(struct lpfc_name)))) {
6813 /* This port has switched fabrics. FLOGI is required */
6814 lpfc_issue_init_vfi(vport);
6816 /* FAN verified - skip FLOGI */
6817 vport->fc_myDID = vport->fc_prevDID;
6818 if (phba->sli_rev < LPFC_SLI_REV4)
6819 lpfc_issue_fabric_reglogin(vport);
6821 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
6822 "3138 Need register VFI: (x%x/%x)\n",
6823 vport->fc_prevDID, vport->fc_myDID);
6824 lpfc_issue_reg_vfi(vport);
6832 * lpfc_els_timeout - Handler funciton to the els timer
6833 * @ptr: holder for the timer function associated data.
6835 * This routine is invoked by the ELS timer after timeout. It posts the ELS
6836 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
6837 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
6838 * up the worker thread. It is for the worker thread to invoke the routine
6839 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
6842 lpfc_els_timeout(unsigned long ptr)
6844 struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
6845 struct lpfc_hba *phba = vport->phba;
6846 uint32_t tmo_posted;
6847 unsigned long iflag;
6849 spin_lock_irqsave(&vport->work_port_lock, iflag);
6850 tmo_posted = vport->work_port_events & WORKER_ELS_TMO;
6851 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
6852 vport->work_port_events |= WORKER_ELS_TMO;
6853 spin_unlock_irqrestore(&vport->work_port_lock, iflag);
6855 if ((!tmo_posted) && (!(vport->load_flag & FC_UNLOADING)))
6856 lpfc_worker_wake_up(phba);
6862 * lpfc_els_timeout_handler - Process an els timeout event
6863 * @vport: pointer to a virtual N_Port data structure.
6865 * This routine is the actual handler function that processes an ELS timeout
6866 * event. It walks the ELS ring to get and abort all the IOCBs (except the
6867 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
6868 * invoking the lpfc_sli_issue_abort_iotag() routine.
6871 lpfc_els_timeout_handler(struct lpfc_vport *vport)
6873 struct lpfc_hba *phba = vport->phba;
6874 struct lpfc_sli_ring *pring;
6875 struct lpfc_iocbq *tmp_iocb, *piocb;
6877 struct lpfc_dmabuf *pcmd;
6878 uint32_t els_command = 0;
6880 uint32_t remote_ID = 0xffffffff;
6881 LIST_HEAD(abort_list);
6884 timeout = (uint32_t)(phba->fc_ratov << 1);
6886 pring = &phba->sli.ring[LPFC_ELS_RING];
6887 if ((phba->pport->load_flag & FC_UNLOADING))
6889 spin_lock_irq(&phba->hbalock);
6890 if (phba->sli_rev == LPFC_SLI_REV4)
6891 spin_lock(&pring->ring_lock);
6893 if ((phba->pport->load_flag & FC_UNLOADING)) {
6894 if (phba->sli_rev == LPFC_SLI_REV4)
6895 spin_unlock(&pring->ring_lock);
6896 spin_unlock_irq(&phba->hbalock);
6900 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
6903 if ((piocb->iocb_flag & LPFC_IO_LIBDFC) != 0 ||
6904 piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
6905 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
6908 if (piocb->vport != vport)
6911 pcmd = (struct lpfc_dmabuf *) piocb->context2;
6913 els_command = *(uint32_t *) (pcmd->virt);
6915 if (els_command == ELS_CMD_FARP ||
6916 els_command == ELS_CMD_FARPR ||
6917 els_command == ELS_CMD_FDISC)
6920 if (piocb->drvrTimeout > 0) {
6921 if (piocb->drvrTimeout >= timeout)
6922 piocb->drvrTimeout -= timeout;
6924 piocb->drvrTimeout = 0;
6928 remote_ID = 0xffffffff;
6929 if (cmd->ulpCommand != CMD_GEN_REQUEST64_CR)
6930 remote_ID = cmd->un.elsreq64.remoteID;
6932 struct lpfc_nodelist *ndlp;
6933 ndlp = __lpfc_findnode_rpi(vport, cmd->ulpContext);
6934 if (ndlp && NLP_CHK_NODE_ACT(ndlp))
6935 remote_ID = ndlp->nlp_DID;
6937 list_add_tail(&piocb->dlist, &abort_list);
6939 if (phba->sli_rev == LPFC_SLI_REV4)
6940 spin_unlock(&pring->ring_lock);
6941 spin_unlock_irq(&phba->hbalock);
6943 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
6945 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
6946 "0127 ELS timeout Data: x%x x%x x%x "
6947 "x%x\n", els_command,
6948 remote_ID, cmd->ulpCommand, cmd->ulpIoTag);
6949 spin_lock_irq(&phba->hbalock);
6950 list_del_init(&piocb->dlist);
6951 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
6952 spin_unlock_irq(&phba->hbalock);
6955 if (!list_empty(&phba->sli.ring[LPFC_ELS_RING].txcmplq))
6956 if (!(phba->pport->load_flag & FC_UNLOADING))
6957 mod_timer(&vport->els_tmofunc,
6958 jiffies + msecs_to_jiffies(1000 * timeout));
6962 * lpfc_els_flush_cmd - Clean up the outstanding els commands to a vport
6963 * @vport: pointer to a host virtual N_Port data structure.
6965 * This routine is used to clean up all the outstanding ELS commands on a
6966 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
6967 * routine. After that, it walks the ELS transmit queue to remove all the
6968 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
6969 * the IOCBs with a non-NULL completion callback function, the callback
6970 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
6971 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
6972 * callback function, the IOCB will simply be released. Finally, it walks
6973 * the ELS transmit completion queue to issue an abort IOCB to any transmit
6974 * completion queue IOCB that is associated with the @vport and is not
6975 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
6976 * part of the discovery state machine) out to HBA by invoking the
6977 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
6978 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
6979 * the IOCBs are aborted when this function returns.
6982 lpfc_els_flush_cmd(struct lpfc_vport *vport)
6984 LIST_HEAD(abort_list);
6985 struct lpfc_hba *phba = vport->phba;
6986 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
6987 struct lpfc_iocbq *tmp_iocb, *piocb;
6990 lpfc_fabric_abort_vport(vport);
6992 * For SLI3, only the hbalock is required. But SLI4 needs to coordinate
6993 * with the ring insert operation. Because lpfc_sli_issue_abort_iotag
6994 * ultimately grabs the ring_lock, the driver must splice the list into
6995 * a working list and release the locks before calling the abort.
6997 spin_lock_irq(&phba->hbalock);
6998 if (phba->sli_rev == LPFC_SLI_REV4)
6999 spin_lock(&pring->ring_lock);
7001 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txcmplq, list) {
7002 if (piocb->iocb_flag & LPFC_IO_LIBDFC)
7005 if (piocb->vport != vport)
7007 list_add_tail(&piocb->dlist, &abort_list);
7009 if (phba->sli_rev == LPFC_SLI_REV4)
7010 spin_unlock(&pring->ring_lock);
7011 spin_unlock_irq(&phba->hbalock);
7012 /* Abort each iocb on the aborted list and remove the dlist links. */
7013 list_for_each_entry_safe(piocb, tmp_iocb, &abort_list, dlist) {
7014 spin_lock_irq(&phba->hbalock);
7015 list_del_init(&piocb->dlist);
7016 lpfc_sli_issue_abort_iotag(phba, pring, piocb);
7017 spin_unlock_irq(&phba->hbalock);
7019 if (!list_empty(&abort_list))
7020 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7021 "3387 abort list for txq not empty\n");
7022 INIT_LIST_HEAD(&abort_list);
7024 spin_lock_irq(&phba->hbalock);
7025 if (phba->sli_rev == LPFC_SLI_REV4)
7026 spin_lock(&pring->ring_lock);
7028 list_for_each_entry_safe(piocb, tmp_iocb, &pring->txq, list) {
7031 if (piocb->iocb_flag & LPFC_IO_LIBDFC) {
7035 /* Do not flush out the QUE_RING and ABORT/CLOSE iocbs */
7036 if (cmd->ulpCommand == CMD_QUE_RING_BUF_CN ||
7037 cmd->ulpCommand == CMD_QUE_RING_BUF64_CN ||
7038 cmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7039 cmd->ulpCommand == CMD_ABORT_XRI_CN)
7042 if (piocb->vport != vport)
7045 list_del_init(&piocb->list);
7046 list_add_tail(&piocb->list, &abort_list);
7048 if (phba->sli_rev == LPFC_SLI_REV4)
7049 spin_unlock(&pring->ring_lock);
7050 spin_unlock_irq(&phba->hbalock);
7052 /* Cancell all the IOCBs from the completions list */
7053 lpfc_sli_cancel_iocbs(phba, &abort_list,
7054 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
7060 * lpfc_els_flush_all_cmd - Clean up all the outstanding els commands to a HBA
7061 * @phba: pointer to lpfc hba data structure.
7063 * This routine is used to clean up all the outstanding ELS commands on a
7064 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
7065 * routine. After that, it walks the ELS transmit queue to remove all the
7066 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
7067 * the IOCBs with the completion callback function associated, the callback
7068 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
7069 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
7070 * callback function associated, the IOCB will simply be released. Finally,
7071 * it walks the ELS transmit completion queue to issue an abort IOCB to any
7072 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
7073 * management plane IOCBs that are not part of the discovery state machine)
7074 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
7077 lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
7079 struct lpfc_vport *vport;
7080 list_for_each_entry(vport, &phba->port_list, listentry)
7081 lpfc_els_flush_cmd(vport);
7087 * lpfc_send_els_failure_event - Posts an ELS command failure event
7088 * @phba: Pointer to hba context object.
7089 * @cmdiocbp: Pointer to command iocb which reported error.
7090 * @rspiocbp: Pointer to response iocb which reported error.
7092 * This function sends an event when there is an ELS command
7096 lpfc_send_els_failure_event(struct lpfc_hba *phba,
7097 struct lpfc_iocbq *cmdiocbp,
7098 struct lpfc_iocbq *rspiocbp)
7100 struct lpfc_vport *vport = cmdiocbp->vport;
7101 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7102 struct lpfc_lsrjt_event lsrjt_event;
7103 struct lpfc_fabric_event_header fabric_event;
7105 struct lpfc_nodelist *ndlp;
7108 ndlp = cmdiocbp->context1;
7109 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
7112 if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) {
7113 lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
7114 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
7115 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
7116 sizeof(struct lpfc_name));
7117 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
7118 sizeof(struct lpfc_name));
7119 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
7120 cmdiocbp->context2)->virt);
7121 lsrjt_event.command = (pcmd != NULL) ? *pcmd : 0;
7122 stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]);
7123 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
7124 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
7125 fc_host_post_vendor_event(shost,
7126 fc_get_event_number(),
7127 sizeof(lsrjt_event),
7128 (char *)&lsrjt_event,
7132 if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
7133 (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) {
7134 fabric_event.event_type = FC_REG_FABRIC_EVENT;
7135 if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY)
7136 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
7138 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
7139 memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
7140 sizeof(struct lpfc_name));
7141 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
7142 sizeof(struct lpfc_name));
7143 fc_host_post_vendor_event(shost,
7144 fc_get_event_number(),
7145 sizeof(fabric_event),
7146 (char *)&fabric_event,
7154 * lpfc_send_els_event - Posts unsolicited els event
7155 * @vport: Pointer to vport object.
7156 * @ndlp: Pointer FC node object.
7157 * @cmd: ELS command code.
7159 * This function posts an event when there is an incoming
7160 * unsolicited ELS command.
7163 lpfc_send_els_event(struct lpfc_vport *vport,
7164 struct lpfc_nodelist *ndlp,
7167 struct lpfc_els_event_header *els_data = NULL;
7168 struct lpfc_logo_event *logo_data = NULL;
7169 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7171 if (*payload == ELS_CMD_LOGO) {
7172 logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
7174 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7175 "0148 Failed to allocate memory "
7176 "for LOGO event\n");
7179 els_data = &logo_data->header;
7181 els_data = kmalloc(sizeof(struct lpfc_els_event_header),
7184 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7185 "0149 Failed to allocate memory "
7190 els_data->event_type = FC_REG_ELS_EVENT;
7193 els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
7196 els_data->subcategory = LPFC_EVENT_PRLO_RCV;
7199 els_data->subcategory = LPFC_EVENT_ADISC_RCV;
7202 els_data->subcategory = LPFC_EVENT_LOGO_RCV;
7203 /* Copy the WWPN in the LOGO payload */
7204 memcpy(logo_data->logo_wwpn, &payload[2],
7205 sizeof(struct lpfc_name));
7211 memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
7212 memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
7213 if (*payload == ELS_CMD_LOGO) {
7214 fc_host_post_vendor_event(shost,
7215 fc_get_event_number(),
7216 sizeof(struct lpfc_logo_event),
7221 fc_host_post_vendor_event(shost,
7222 fc_get_event_number(),
7223 sizeof(struct lpfc_els_event_header),
7234 * lpfc_els_unsol_buffer - Process an unsolicited event data buffer
7235 * @phba: pointer to lpfc hba data structure.
7236 * @pring: pointer to a SLI ring.
7237 * @vport: pointer to a host virtual N_Port data structure.
7238 * @elsiocb: pointer to lpfc els command iocb data structure.
7240 * This routine is used for processing the IOCB associated with a unsolicited
7241 * event. It first determines whether there is an existing ndlp that matches
7242 * the DID from the unsolicited IOCB. If not, it will create a new one with
7243 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
7244 * IOCB is then used to invoke the proper routine and to set up proper state
7245 * of the discovery state machine.
7248 lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7249 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
7251 struct Scsi_Host *shost;
7252 struct lpfc_nodelist *ndlp;
7255 uint32_t cmd, did, newnode;
7256 uint8_t rjt_exp, rjt_err = 0;
7257 IOCB_t *icmd = &elsiocb->iocb;
7259 if (!vport || !(elsiocb->context2))
7263 payload = ((struct lpfc_dmabuf *)elsiocb->context2)->virt;
7265 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) == 0)
7266 lpfc_post_buffer(phba, pring, 1);
7268 did = icmd->un.rcvels.remoteID;
7269 if (icmd->ulpStatus) {
7270 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7271 "RCV Unsol ELS: status:x%x/x%x did:x%x",
7272 icmd->ulpStatus, icmd->un.ulpWord[4], did);
7276 /* Check to see if link went down during discovery */
7277 if (lpfc_els_chk_latt(vport))
7280 /* Ignore traffic received during vport shutdown. */
7281 if (vport->load_flag & FC_UNLOADING)
7284 /* If NPort discovery is delayed drop incoming ELS */
7285 if ((vport->fc_flag & FC_DISC_DELAYED) &&
7286 (cmd != ELS_CMD_PLOGI))
7289 ndlp = lpfc_findnode_did(vport, did);
7291 /* Cannot find existing Fabric ndlp, so allocate a new one */
7292 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
7296 lpfc_nlp_init(vport, ndlp, did);
7297 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7299 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7300 ndlp->nlp_type |= NLP_FABRIC;
7301 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
7302 ndlp = lpfc_enable_node(vport, ndlp,
7303 NLP_STE_UNUSED_NODE);
7306 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7308 if ((did & Fabric_DID_MASK) == Fabric_DID_MASK)
7309 ndlp->nlp_type |= NLP_FABRIC;
7310 } else if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
7311 /* This is similar to the new node path */
7312 ndlp = lpfc_nlp_get(ndlp);
7315 lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
7319 phba->fc_stat.elsRcvFrame++;
7322 * Do not process any unsolicited ELS commands
7323 * if the ndlp is in DEV_LOSS
7325 shost = lpfc_shost_from_vport(vport);
7326 spin_lock_irq(shost->host_lock);
7327 if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) {
7328 spin_unlock_irq(shost->host_lock);
7333 spin_unlock_irq(shost->host_lock);
7335 elsiocb->context1 = lpfc_nlp_get(ndlp);
7336 elsiocb->vport = vport;
7338 if ((cmd & ELS_CMD_MASK) == ELS_CMD_RSCN) {
7339 cmd &= ELS_CMD_MASK;
7341 /* ELS command <elsCmd> received from NPORT <did> */
7342 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7343 "0112 ELS command x%x received from NPORT x%x "
7344 "Data: x%x x%x x%x x%x\n",
7345 cmd, did, vport->port_state, vport->fc_flag,
7346 vport->fc_myDID, vport->fc_prevDID);
7348 /* reject till our FLOGI completes */
7349 if ((vport->port_state < LPFC_FABRIC_CFG_LINK) &&
7350 (cmd != ELS_CMD_FLOGI)) {
7351 rjt_err = LSRJT_UNABLE_TPC;
7352 rjt_exp = LSEXP_NOTHING_MORE;
7358 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7359 "RCV PLOGI: did:x%x/ste:x%x flg:x%x",
7360 did, vport->port_state, ndlp->nlp_flag);
7362 phba->fc_stat.elsRcvPLOGI++;
7363 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
7364 if (phba->sli_rev == LPFC_SLI_REV4 &&
7365 (phba->pport->fc_flag & FC_PT2PT)) {
7366 vport->fc_prevDID = vport->fc_myDID;
7367 /* Our DID needs to be updated before registering
7368 * the vfi. This is done in lpfc_rcv_plogi but
7369 * that is called after the reg_vfi.
7371 vport->fc_myDID = elsiocb->iocb.un.rcvels.parmRo;
7372 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
7373 "3312 Remote port assigned DID x%x "
7374 "%x\n", vport->fc_myDID,
7378 lpfc_send_els_event(vport, ndlp, payload);
7380 /* If Nport discovery is delayed, reject PLOGIs */
7381 if (vport->fc_flag & FC_DISC_DELAYED) {
7382 rjt_err = LSRJT_UNABLE_TPC;
7383 rjt_exp = LSEXP_NOTHING_MORE;
7387 if (vport->port_state < LPFC_DISC_AUTH) {
7388 if (!(phba->pport->fc_flag & FC_PT2PT) ||
7389 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
7390 rjt_err = LSRJT_UNABLE_TPC;
7391 rjt_exp = LSEXP_NOTHING_MORE;
7396 spin_lock_irq(shost->host_lock);
7397 ndlp->nlp_flag &= ~NLP_TARGET_REMOVE;
7398 spin_unlock_irq(shost->host_lock);
7400 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7405 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7406 "RCV FLOGI: did:x%x/ste:x%x flg:x%x",
7407 did, vport->port_state, ndlp->nlp_flag);
7409 phba->fc_stat.elsRcvFLOGI++;
7410 lpfc_els_rcv_flogi(vport, elsiocb, ndlp);
7415 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7416 "RCV LOGO: did:x%x/ste:x%x flg:x%x",
7417 did, vport->port_state, ndlp->nlp_flag);
7419 phba->fc_stat.elsRcvLOGO++;
7420 lpfc_send_els_event(vport, ndlp, payload);
7421 if (vport->port_state < LPFC_DISC_AUTH) {
7422 rjt_err = LSRJT_UNABLE_TPC;
7423 rjt_exp = LSEXP_NOTHING_MORE;
7426 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_LOGO);
7429 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7430 "RCV PRLO: did:x%x/ste:x%x flg:x%x",
7431 did, vport->port_state, ndlp->nlp_flag);
7433 phba->fc_stat.elsRcvPRLO++;
7434 lpfc_send_els_event(vport, ndlp, payload);
7435 if (vport->port_state < LPFC_DISC_AUTH) {
7436 rjt_err = LSRJT_UNABLE_TPC;
7437 rjt_exp = LSEXP_NOTHING_MORE;
7440 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLO);
7443 phba->fc_stat.elsRcvLCB++;
7444 lpfc_els_rcv_lcb(vport, elsiocb, ndlp);
7447 phba->fc_stat.elsRcvRDP++;
7448 lpfc_els_rcv_rdp(vport, elsiocb, ndlp);
7451 phba->fc_stat.elsRcvRSCN++;
7452 lpfc_els_rcv_rscn(vport, elsiocb, ndlp);
7457 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7458 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
7459 did, vport->port_state, ndlp->nlp_flag);
7461 lpfc_send_els_event(vport, ndlp, payload);
7462 phba->fc_stat.elsRcvADISC++;
7463 if (vport->port_state < LPFC_DISC_AUTH) {
7464 rjt_err = LSRJT_UNABLE_TPC;
7465 rjt_exp = LSEXP_NOTHING_MORE;
7468 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7472 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7473 "RCV PDISC: did:x%x/ste:x%x flg:x%x",
7474 did, vport->port_state, ndlp->nlp_flag);
7476 phba->fc_stat.elsRcvPDISC++;
7477 if (vport->port_state < LPFC_DISC_AUTH) {
7478 rjt_err = LSRJT_UNABLE_TPC;
7479 rjt_exp = LSEXP_NOTHING_MORE;
7482 lpfc_disc_state_machine(vport, ndlp, elsiocb,
7486 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7487 "RCV FARPR: did:x%x/ste:x%x flg:x%x",
7488 did, vport->port_state, ndlp->nlp_flag);
7490 phba->fc_stat.elsRcvFARPR++;
7491 lpfc_els_rcv_farpr(vport, elsiocb, ndlp);
7494 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7495 "RCV FARP: did:x%x/ste:x%x flg:x%x",
7496 did, vport->port_state, ndlp->nlp_flag);
7498 phba->fc_stat.elsRcvFARP++;
7499 lpfc_els_rcv_farp(vport, elsiocb, ndlp);
7502 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7503 "RCV FAN: did:x%x/ste:x%x flg:x%x",
7504 did, vport->port_state, ndlp->nlp_flag);
7506 phba->fc_stat.elsRcvFAN++;
7507 lpfc_els_rcv_fan(vport, elsiocb, ndlp);
7510 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7511 "RCV PRLI: did:x%x/ste:x%x flg:x%x",
7512 did, vport->port_state, ndlp->nlp_flag);
7514 phba->fc_stat.elsRcvPRLI++;
7515 if ((vport->port_state < LPFC_DISC_AUTH) &&
7516 (vport->fc_flag & FC_FABRIC)) {
7517 rjt_err = LSRJT_UNABLE_TPC;
7518 rjt_exp = LSEXP_NOTHING_MORE;
7521 lpfc_disc_state_machine(vport, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
7524 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7525 "RCV LIRR: did:x%x/ste:x%x flg:x%x",
7526 did, vport->port_state, ndlp->nlp_flag);
7528 phba->fc_stat.elsRcvLIRR++;
7529 lpfc_els_rcv_lirr(vport, elsiocb, ndlp);
7534 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7535 "RCV RLS: did:x%x/ste:x%x flg:x%x",
7536 did, vport->port_state, ndlp->nlp_flag);
7538 phba->fc_stat.elsRcvRLS++;
7539 lpfc_els_rcv_rls(vport, elsiocb, ndlp);
7544 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7545 "RCV RPS: did:x%x/ste:x%x flg:x%x",
7546 did, vport->port_state, ndlp->nlp_flag);
7548 phba->fc_stat.elsRcvRPS++;
7549 lpfc_els_rcv_rps(vport, elsiocb, ndlp);
7554 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7555 "RCV RPL: did:x%x/ste:x%x flg:x%x",
7556 did, vport->port_state, ndlp->nlp_flag);
7558 phba->fc_stat.elsRcvRPL++;
7559 lpfc_els_rcv_rpl(vport, elsiocb, ndlp);
7564 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7565 "RCV RNID: did:x%x/ste:x%x flg:x%x",
7566 did, vport->port_state, ndlp->nlp_flag);
7568 phba->fc_stat.elsRcvRNID++;
7569 lpfc_els_rcv_rnid(vport, elsiocb, ndlp);
7574 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7575 "RCV RTV: did:x%x/ste:x%x flg:x%x",
7576 did, vport->port_state, ndlp->nlp_flag);
7577 phba->fc_stat.elsRcvRTV++;
7578 lpfc_els_rcv_rtv(vport, elsiocb, ndlp);
7583 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7584 "RCV RRQ: did:x%x/ste:x%x flg:x%x",
7585 did, vport->port_state, ndlp->nlp_flag);
7587 phba->fc_stat.elsRcvRRQ++;
7588 lpfc_els_rcv_rrq(vport, elsiocb, ndlp);
7593 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7594 "RCV ECHO: did:x%x/ste:x%x flg:x%x",
7595 did, vport->port_state, ndlp->nlp_flag);
7597 phba->fc_stat.elsRcvECHO++;
7598 lpfc_els_rcv_echo(vport, elsiocb, ndlp);
7603 /* receive this due to exchange closed */
7604 rjt_err = LSRJT_UNABLE_TPC;
7605 rjt_exp = LSEXP_INVALID_OX_RX;
7608 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
7609 "RCV ELS cmd: cmd:x%x did:x%x/ste:x%x",
7610 cmd, did, vport->port_state);
7612 /* Unsupported ELS command, reject */
7613 rjt_err = LSRJT_CMD_UNSUPPORTED;
7614 rjt_exp = LSEXP_NOTHING_MORE;
7616 /* Unknown ELS command <elsCmd> received from NPORT <did> */
7617 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7618 "0115 Unknown ELS command x%x "
7619 "received from NPORT x%x\n", cmd, did);
7626 /* check if need to LS_RJT received ELS cmd */
7628 memset(&stat, 0, sizeof(stat));
7629 stat.un.b.lsRjtRsnCode = rjt_err;
7630 stat.un.b.lsRjtRsnCodeExp = rjt_exp;
7631 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, elsiocb, ndlp,
7635 lpfc_nlp_put(elsiocb->context1);
7636 elsiocb->context1 = NULL;
7640 if (vport && !(vport->load_flag & FC_UNLOADING))
7641 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7642 "0111 Dropping received ELS cmd "
7643 "Data: x%x x%x x%x\n",
7644 icmd->ulpStatus, icmd->un.ulpWord[4], icmd->ulpTimeout);
7645 phba->fc_stat.elsRcvDrop++;
7649 * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
7650 * @phba: pointer to lpfc hba data structure.
7651 * @pring: pointer to a SLI ring.
7652 * @elsiocb: pointer to lpfc els iocb data structure.
7654 * This routine is used to process an unsolicited event received from a SLI
7655 * (Service Level Interface) ring. The actual processing of the data buffer
7656 * associated with the unsolicited event is done by invoking the routine
7657 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
7658 * SLI ring on which the unsolicited event was received.
7661 lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7662 struct lpfc_iocbq *elsiocb)
7664 struct lpfc_vport *vport = phba->pport;
7665 IOCB_t *icmd = &elsiocb->iocb;
7667 struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2;
7668 struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3;
7670 elsiocb->context1 = NULL;
7671 elsiocb->context2 = NULL;
7672 elsiocb->context3 = NULL;
7674 if (icmd->ulpStatus == IOSTAT_NEED_BUFFER) {
7675 lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
7676 } else if (icmd->ulpStatus == IOSTAT_LOCAL_REJECT &&
7677 (icmd->un.ulpWord[4] & IOERR_PARAM_MASK) ==
7678 IOERR_RCV_BUFFER_WAITING) {
7679 phba->fc_stat.NoRcvBuf++;
7680 /* Not enough posted buffers; Try posting more buffers */
7681 if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
7682 lpfc_post_buffer(phba, pring, 0);
7686 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
7687 (icmd->ulpCommand == CMD_IOCB_RCV_ELS64_CX ||
7688 icmd->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
7689 if (icmd->unsli3.rcvsli3.vpi == 0xffff)
7690 vport = phba->pport;
7692 vport = lpfc_find_vport_by_vpid(phba,
7693 icmd->unsli3.rcvsli3.vpi);
7696 /* If there are no BDEs associated
7697 * with this IOCB, there is nothing to do.
7699 if (icmd->ulpBdeCount == 0)
7702 /* type of ELS cmd is first 32bit word
7705 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
7706 elsiocb->context2 = bdeBuf1;
7708 paddr = getPaddr(icmd->un.cont64[0].addrHigh,
7709 icmd->un.cont64[0].addrLow);
7710 elsiocb->context2 = lpfc_sli_ringpostbuf_get(phba, pring,
7714 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
7716 * The different unsolicited event handlers would tell us
7717 * if they are done with "mp" by setting context2 to NULL.
7719 if (elsiocb->context2) {
7720 lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
7721 elsiocb->context2 = NULL;
7724 /* RCV_ELS64_CX provide for 2 BDEs - process 2nd if included */
7725 if ((phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) &&
7726 icmd->ulpBdeCount == 2) {
7727 elsiocb->context2 = bdeBuf2;
7728 lpfc_els_unsol_buffer(phba, pring, vport, elsiocb);
7729 /* free mp if we are done with it */
7730 if (elsiocb->context2) {
7731 lpfc_in_buf_free(phba, elsiocb->context2);
7732 elsiocb->context2 = NULL;
7738 * lpfc_do_scr_ns_plogi - Issue a plogi to the name server for scr
7739 * @phba: pointer to lpfc hba data structure.
7740 * @vport: pointer to a virtual N_Port data structure.
7742 * This routine issues a Port Login (PLOGI) to the Name Server with
7743 * State Change Request (SCR) for a @vport. This routine will create an
7744 * ndlp for the Name Server associated to the @vport if such node does
7745 * not already exist. The PLOGI to Name Server is issued by invoking the
7746 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
7747 * (FDMI) is configured to the @vport, a FDMI node will be created and
7748 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
7751 lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
7753 struct lpfc_nodelist *ndlp, *ndlp_fdmi;
7754 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7757 * If lpfc_delay_discovery parameter is set and the clean address
7758 * bit is cleared and fc fabric parameters chenged, delay FC NPort
7761 spin_lock_irq(shost->host_lock);
7762 if (vport->fc_flag & FC_DISC_DELAYED) {
7763 spin_unlock_irq(shost->host_lock);
7764 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
7765 "3334 Delay fc port discovery for %d seconds\n",
7767 mod_timer(&vport->delayed_disc_tmo,
7768 jiffies + msecs_to_jiffies(1000 * phba->fc_ratov));
7771 spin_unlock_irq(shost->host_lock);
7773 ndlp = lpfc_findnode_did(vport, NameServer_DID);
7775 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
7777 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
7778 lpfc_disc_start(vport);
7781 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
7782 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7783 "0251 NameServer login: no memory\n");
7786 lpfc_nlp_init(vport, ndlp, NameServer_DID);
7787 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
7788 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
7790 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
7791 lpfc_disc_start(vport);
7794 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
7795 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7796 "0348 NameServer login: node freed\n");
7800 ndlp->nlp_type |= NLP_FABRIC;
7802 lpfc_nlp_set_state(vport, ndlp, NLP_STE_PLOGI_ISSUE);
7804 if (lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0)) {
7805 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
7806 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
7807 "0252 Cannot issue NameServer login\n");
7811 if (vport->cfg_fdmi_on & LPFC_FDMI_SUPPORT) {
7812 /* If this is the first time, allocate an ndlp and initialize
7813 * it. Otherwise, make sure the node is enabled and then do the
7816 ndlp_fdmi = lpfc_findnode_did(vport, FDMI_DID);
7818 ndlp_fdmi = mempool_alloc(phba->nlp_mem_pool,
7821 lpfc_nlp_init(vport, ndlp_fdmi, FDMI_DID);
7822 ndlp_fdmi->nlp_type |= NLP_FABRIC;
7826 if (!NLP_CHK_NODE_ACT(ndlp_fdmi))
7827 ndlp_fdmi = lpfc_enable_node(vport,
7832 lpfc_nlp_set_state(vport, ndlp_fdmi,
7833 NLP_STE_PLOGI_ISSUE);
7834 lpfc_issue_els_plogi(vport, ndlp_fdmi->nlp_DID, 0);
7840 * lpfc_cmpl_reg_new_vport - Completion callback function to register new vport
7841 * @phba: pointer to lpfc hba data structure.
7842 * @pmb: pointer to the driver internal queue element for mailbox command.
7844 * This routine is the completion callback function to register new vport
7845 * mailbox command. If the new vport mailbox command completes successfully,
7846 * the fabric registration login shall be performed on physical port (the
7847 * new vport created is actually a physical port, with VPI 0) or the port
7848 * login to Name Server for State Change Request (SCR) will be performed
7849 * on virtual port (real virtual port, with VPI greater than 0).
7852 lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
7854 struct lpfc_vport *vport = pmb->vport;
7855 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7856 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
7857 MAILBOX_t *mb = &pmb->u.mb;
7860 spin_lock_irq(shost->host_lock);
7861 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
7862 spin_unlock_irq(shost->host_lock);
7864 if (mb->mbxStatus) {
7865 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
7866 "0915 Register VPI failed : Status: x%x"
7867 " upd bit: x%x \n", mb->mbxStatus,
7868 mb->un.varRegVpi.upd);
7869 if (phba->sli_rev == LPFC_SLI_REV4 &&
7870 mb->un.varRegVpi.upd)
7871 goto mbox_err_exit ;
7873 switch (mb->mbxStatus) {
7874 case 0x11: /* unsupported feature */
7875 case 0x9603: /* max_vpi exceeded */
7876 case 0x9602: /* Link event since CLEAR_LA */
7877 /* giving up on vport registration */
7878 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
7879 spin_lock_irq(shost->host_lock);
7880 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
7881 spin_unlock_irq(shost->host_lock);
7882 lpfc_can_disctmo(vport);
7884 /* If reg_vpi fail with invalid VPI status, re-init VPI */
7886 spin_lock_irq(shost->host_lock);
7887 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7888 spin_unlock_irq(shost->host_lock);
7889 lpfc_init_vpi(phba, pmb, vport->vpi);
7891 pmb->mbox_cmpl = lpfc_init_vpi_cmpl;
7892 rc = lpfc_sli_issue_mbox(phba, pmb,
7894 if (rc == MBX_NOT_FINISHED) {
7895 lpfc_printf_vlog(vport,
7897 "2732 Failed to issue INIT_VPI"
7898 " mailbox command\n");
7905 /* Try to recover from this error */
7906 if (phba->sli_rev == LPFC_SLI_REV4)
7907 lpfc_sli4_unreg_all_rpis(vport);
7908 lpfc_mbx_unreg_vpi(vport);
7909 spin_lock_irq(shost->host_lock);
7910 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
7911 spin_unlock_irq(shost->host_lock);
7912 if (mb->mbxStatus == MBX_NOT_FINISHED)
7914 if ((vport->port_type == LPFC_PHYSICAL_PORT) &&
7915 !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) {
7916 if (phba->sli_rev == LPFC_SLI_REV4)
7917 lpfc_issue_init_vfi(vport);
7919 lpfc_initial_flogi(vport);
7921 lpfc_initial_fdisc(vport);
7926 spin_lock_irq(shost->host_lock);
7927 vport->vpi_state |= LPFC_VPI_REGISTERED;
7928 spin_unlock_irq(shost->host_lock);
7929 if (vport == phba->pport) {
7930 if (phba->sli_rev < LPFC_SLI_REV4)
7931 lpfc_issue_fabric_reglogin(vport);
7934 * If the physical port is instantiated using
7935 * FDISC, do not start vport discovery.
7937 if (vport->port_state != LPFC_FDISC)
7938 lpfc_start_fdiscs(phba);
7939 lpfc_do_scr_ns_plogi(phba, vport);
7942 lpfc_do_scr_ns_plogi(phba, vport);
7945 /* Now, we decrement the ndlp reference count held for this
7950 mempool_free(pmb, phba->mbox_mem_pool);
7955 * lpfc_register_new_vport - Register a new vport with a HBA
7956 * @phba: pointer to lpfc hba data structure.
7957 * @vport: pointer to a host virtual N_Port data structure.
7958 * @ndlp: pointer to a node-list data structure.
7960 * This routine registers the @vport as a new virtual port with a HBA.
7961 * It is done through a registering vpi mailbox command.
7964 lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
7965 struct lpfc_nodelist *ndlp)
7967 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
7970 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7972 lpfc_reg_vpi(vport, mbox);
7973 mbox->vport = vport;
7974 mbox->context2 = lpfc_nlp_get(ndlp);
7975 mbox->mbox_cmpl = lpfc_cmpl_reg_new_vport;
7976 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
7977 == MBX_NOT_FINISHED) {
7978 /* mailbox command not success, decrement ndlp
7979 * reference count for this command
7982 mempool_free(mbox, phba->mbox_mem_pool);
7984 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
7985 "0253 Register VPI: Can't send mbox\n");
7989 lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
7990 "0254 Register VPI: no memory\n");
7996 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
7997 spin_lock_irq(shost->host_lock);
7998 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
7999 spin_unlock_irq(shost->host_lock);
8004 * lpfc_cancel_all_vport_retry_delay_timer - Cancel all vport retry delay timer
8005 * @phba: pointer to lpfc hba data structure.
8007 * This routine cancels the retry delay timers to all the vports.
8010 lpfc_cancel_all_vport_retry_delay_timer(struct lpfc_hba *phba)
8012 struct lpfc_vport **vports;
8013 struct lpfc_nodelist *ndlp;
8014 uint32_t link_state;
8017 /* Treat this failure as linkdown for all vports */
8018 link_state = phba->link_state;
8019 lpfc_linkdown(phba);
8020 phba->link_state = link_state;
8022 vports = lpfc_create_vport_work_array(phba);
8025 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
8026 ndlp = lpfc_findnode_did(vports[i], Fabric_DID);
8028 lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
8029 lpfc_els_flush_cmd(vports[i]);
8031 lpfc_destroy_vport_work_array(phba, vports);
8036 * lpfc_retry_pport_discovery - Start timer to retry FLOGI.
8037 * @phba: pointer to lpfc hba data structure.
8039 * This routine abort all pending discovery commands and
8040 * start a timer to retry FLOGI for the physical port
8044 lpfc_retry_pport_discovery(struct lpfc_hba *phba)
8046 struct lpfc_nodelist *ndlp;
8047 struct Scsi_Host *shost;
8049 /* Cancel the all vports retry delay retry timers */
8050 lpfc_cancel_all_vport_retry_delay_timer(phba);
8052 /* If fabric require FLOGI, then re-instantiate physical login */
8053 ndlp = lpfc_findnode_did(phba->pport, Fabric_DID);
8057 shost = lpfc_shost_from_vport(phba->pport);
8058 mod_timer(&ndlp->nlp_delayfunc, jiffies + msecs_to_jiffies(1000));
8059 spin_lock_irq(shost->host_lock);
8060 ndlp->nlp_flag |= NLP_DELAY_TMO;
8061 spin_unlock_irq(shost->host_lock);
8062 ndlp->nlp_last_elscmd = ELS_CMD_FLOGI;
8063 phba->pport->port_state = LPFC_FLOGI;
8068 * lpfc_fabric_login_reqd - Check if FLOGI required.
8069 * @phba: pointer to lpfc hba data structure.
8070 * @cmdiocb: pointer to FDISC command iocb.
8071 * @rspiocb: pointer to FDISC response iocb.
8073 * This routine checks if a FLOGI is reguired for FDISC
8077 lpfc_fabric_login_reqd(struct lpfc_hba *phba,
8078 struct lpfc_iocbq *cmdiocb,
8079 struct lpfc_iocbq *rspiocb)
8082 if ((rspiocb->iocb.ulpStatus != IOSTAT_FABRIC_RJT) ||
8083 (rspiocb->iocb.un.ulpWord[4] != RJT_LOGIN_REQUIRED))
8090 * lpfc_cmpl_els_fdisc - Completion function for fdisc iocb command
8091 * @phba: pointer to lpfc hba data structure.
8092 * @cmdiocb: pointer to lpfc command iocb data structure.
8093 * @rspiocb: pointer to lpfc response iocb data structure.
8095 * This routine is the completion callback function to a Fabric Discover
8096 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
8097 * single threaded, each FDISC completion callback function will reset
8098 * the discovery timer for all vports such that the timers will not get
8099 * unnecessary timeout. The function checks the FDISC IOCB status. If error
8100 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
8101 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
8102 * assigned to the vport has been changed with the completion of the FDISC
8103 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
8104 * are unregistered from the HBA, and then the lpfc_register_new_vport()
8105 * routine is invoked to register new vport with the HBA. Otherwise, the
8106 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
8107 * Server for State Change Request (SCR).
8110 lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8111 struct lpfc_iocbq *rspiocb)
8113 struct lpfc_vport *vport = cmdiocb->vport;
8114 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8115 struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) cmdiocb->context1;
8116 struct lpfc_nodelist *np;
8117 struct lpfc_nodelist *next_np;
8118 IOCB_t *irsp = &rspiocb->iocb;
8119 struct lpfc_iocbq *piocb;
8120 struct lpfc_dmabuf *pcmd = cmdiocb->context2, *prsp;
8121 struct serv_parm *sp;
8122 uint8_t fabric_param_changed;
8124 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8125 "0123 FDISC completes. x%x/x%x prevDID: x%x\n",
8126 irsp->ulpStatus, irsp->un.ulpWord[4],
8128 /* Since all FDISCs are being single threaded, we
8129 * must reset the discovery timer for ALL vports
8130 * waiting to send FDISC when one completes.
8132 list_for_each_entry(piocb, &phba->fabric_iocb_list, list) {
8133 lpfc_set_disctmo(piocb->vport);
8136 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8137 "FDISC cmpl: status:x%x/x%x prevdid:x%x",
8138 irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_prevDID);
8140 if (irsp->ulpStatus) {
8142 if (lpfc_fabric_login_reqd(phba, cmdiocb, rspiocb)) {
8143 lpfc_retry_pport_discovery(phba);
8147 /* Check for retry */
8148 if (lpfc_els_retry(phba, cmdiocb, rspiocb))
8151 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8152 "0126 FDISC failed. (x%x/x%x)\n",
8153 irsp->ulpStatus, irsp->un.ulpWord[4]);
8156 spin_lock_irq(shost->host_lock);
8157 vport->fc_flag &= ~FC_VPORT_CVL_RCVD;
8158 vport->fc_flag &= ~FC_VPORT_LOGO_RCVD;
8159 vport->fc_flag |= FC_FABRIC;
8160 if (vport->phba->fc_topology == LPFC_TOPOLOGY_LOOP)
8161 vport->fc_flag |= FC_PUBLIC_LOOP;
8162 spin_unlock_irq(shost->host_lock);
8164 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
8165 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
8166 prsp = list_get_first(&pcmd->list, struct lpfc_dmabuf, list);
8169 sp = prsp->virt + sizeof(uint32_t);
8170 fabric_param_changed = lpfc_check_clean_addr_bit(vport, sp);
8171 memcpy(&vport->fabric_portname, &sp->portName,
8172 sizeof(struct lpfc_name));
8173 memcpy(&vport->fabric_nodename, &sp->nodeName,
8174 sizeof(struct lpfc_name));
8175 if (fabric_param_changed &&
8176 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8177 /* If our NportID changed, we need to ensure all
8178 * remaining NPORTs get unreg_login'ed so we can
8181 list_for_each_entry_safe(np, next_np,
8182 &vport->fc_nodes, nlp_listp) {
8183 if (!NLP_CHK_NODE_ACT(ndlp) ||
8184 (np->nlp_state != NLP_STE_NPR_NODE) ||
8185 !(np->nlp_flag & NLP_NPR_ADISC))
8187 spin_lock_irq(shost->host_lock);
8188 np->nlp_flag &= ~NLP_NPR_ADISC;
8189 spin_unlock_irq(shost->host_lock);
8190 lpfc_unreg_rpi(vport, np);
8192 lpfc_cleanup_pending_mbox(vport);
8194 if (phba->sli_rev == LPFC_SLI_REV4)
8195 lpfc_sli4_unreg_all_rpis(vport);
8197 lpfc_mbx_unreg_vpi(vport);
8198 spin_lock_irq(shost->host_lock);
8199 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
8200 if (phba->sli_rev == LPFC_SLI_REV4)
8201 vport->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
8203 vport->fc_flag |= FC_LOGO_RCVD_DID_CHNG;
8204 spin_unlock_irq(shost->host_lock);
8205 } else if ((phba->sli_rev == LPFC_SLI_REV4) &&
8206 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
8208 * Driver needs to re-reg VPI in order for f/w
8209 * to update the MAC address.
8211 lpfc_register_new_vport(phba, vport, ndlp);
8215 if (vport->fc_flag & FC_VPORT_NEEDS_INIT_VPI)
8216 lpfc_issue_init_vpi(vport);
8217 else if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
8218 lpfc_register_new_vport(phba, vport, ndlp);
8220 lpfc_do_scr_ns_plogi(phba, vport);
8223 if (vport->fc_vport->vport_state != FC_VPORT_NO_FABRIC_RSCS)
8224 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8225 /* Cancel discovery timer */
8226 lpfc_can_disctmo(vport);
8229 lpfc_els_free_iocb(phba, cmdiocb);
8233 * lpfc_issue_els_fdisc - Issue a fdisc iocb command
8234 * @vport: pointer to a virtual N_Port data structure.
8235 * @ndlp: pointer to a node-list data structure.
8236 * @retry: number of retries to the command IOCB.
8238 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
8239 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
8240 * routine to issue the IOCB, which makes sure only one outstanding fabric
8241 * IOCB will be sent off HBA at any given time.
8243 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8244 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8245 * will be stored into the context1 field of the IOCB for the completion
8246 * callback function to the FDISC ELS command.
8249 * 0 - Successfully issued fdisc iocb command
8250 * 1 - Failed to issue fdisc iocb command
8253 lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
8256 struct lpfc_hba *phba = vport->phba;
8258 struct lpfc_iocbq *elsiocb;
8259 struct serv_parm *sp;
8262 int did = ndlp->nlp_DID;
8265 vport->port_state = LPFC_FDISC;
8266 vport->fc_myDID = 0;
8267 cmdsize = (sizeof(uint32_t) + sizeof(struct serv_parm));
8268 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, retry, ndlp, did,
8271 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8272 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8273 "0255 Issue FDISC: no IOCB\n");
8277 icmd = &elsiocb->iocb;
8278 icmd->un.elsreq64.myID = 0;
8279 icmd->un.elsreq64.fl = 1;
8282 * SLI3 ports require a different context type value than SLI4.
8283 * Catch SLI3 ports here and override the prep.
8285 if (phba->sli_rev == LPFC_SLI_REV3) {
8290 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8291 *((uint32_t *) (pcmd)) = ELS_CMD_FDISC;
8292 pcmd += sizeof(uint32_t); /* CSP Word 1 */
8293 memcpy(pcmd, &vport->phba->pport->fc_sparam, sizeof(struct serv_parm));
8294 sp = (struct serv_parm *) pcmd;
8295 /* Setup CSPs accordingly for Fabric */
8296 sp->cmn.e_d_tov = 0;
8297 sp->cmn.w2.r_a_tov = 0;
8298 sp->cmn.virtual_fabric_support = 0;
8299 sp->cls1.classValid = 0;
8300 sp->cls2.seqDelivery = 1;
8301 sp->cls3.seqDelivery = 1;
8303 pcmd += sizeof(uint32_t); /* CSP Word 2 */
8304 pcmd += sizeof(uint32_t); /* CSP Word 3 */
8305 pcmd += sizeof(uint32_t); /* CSP Word 4 */
8306 pcmd += sizeof(uint32_t); /* Port Name */
8307 memcpy(pcmd, &vport->fc_portname, 8);
8308 pcmd += sizeof(uint32_t); /* Node Name */
8309 pcmd += sizeof(uint32_t); /* Node Name */
8310 memcpy(pcmd, &vport->fc_nodename, 8);
8312 lpfc_set_disctmo(vport);
8314 phba->fc_stat.elsXmitFDISC++;
8315 elsiocb->iocb_cmpl = lpfc_cmpl_els_fdisc;
8317 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8318 "Issue FDISC: did:x%x",
8321 rc = lpfc_issue_fabric_iocb(phba, elsiocb);
8322 if (rc == IOCB_ERROR) {
8323 lpfc_els_free_iocb(phba, elsiocb);
8324 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
8325 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
8326 "0256 Issue FDISC: Cannot send IOCB\n");
8329 lpfc_vport_set_state(vport, FC_VPORT_INITIALIZING);
8334 * lpfc_cmpl_els_npiv_logo - Completion function with vport logo
8335 * @phba: pointer to lpfc hba data structure.
8336 * @cmdiocb: pointer to lpfc command iocb data structure.
8337 * @rspiocb: pointer to lpfc response iocb data structure.
8339 * This routine is the completion callback function to the issuing of a LOGO
8340 * ELS command off a vport. It frees the command IOCB and then decrement the
8341 * reference count held on ndlp for this completion function, indicating that
8342 * the reference to the ndlp is no long needed. Note that the
8343 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
8344 * callback function and an additional explicit ndlp reference decrementation
8345 * will trigger the actual release of the ndlp.
8348 lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8349 struct lpfc_iocbq *rspiocb)
8351 struct lpfc_vport *vport = cmdiocb->vport;
8353 struct lpfc_nodelist *ndlp;
8354 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8356 ndlp = (struct lpfc_nodelist *)cmdiocb->context1;
8357 irsp = &rspiocb->iocb;
8358 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8359 "LOGO npiv cmpl: status:x%x/x%x did:x%x",
8360 irsp->ulpStatus, irsp->un.ulpWord[4], irsp->un.rcvels.remoteID);
8362 lpfc_els_free_iocb(phba, cmdiocb);
8363 vport->unreg_vpi_cmpl = VPORT_ERROR;
8365 /* Trigger the release of the ndlp after logo */
8368 /* NPIV LOGO completes to NPort <nlp_DID> */
8369 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
8370 "2928 NPIV LOGO completes to NPort x%x "
8371 "Data: x%x x%x x%x x%x\n",
8372 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
8373 irsp->ulpTimeout, vport->num_disc_nodes);
8375 if (irsp->ulpStatus == IOSTAT_SUCCESS) {
8376 spin_lock_irq(shost->host_lock);
8377 vport->fc_flag &= ~FC_NDISC_ACTIVE;
8378 vport->fc_flag &= ~FC_FABRIC;
8379 spin_unlock_irq(shost->host_lock);
8380 lpfc_can_disctmo(vport);
8385 * lpfc_issue_els_npiv_logo - Issue a logo off a vport
8386 * @vport: pointer to a virtual N_Port data structure.
8387 * @ndlp: pointer to a node-list data structure.
8389 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
8391 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
8392 * will be incremented by 1 for holding the ndlp and the reference to ndlp
8393 * will be stored into the context1 field of the IOCB for the completion
8394 * callback function to the LOGO ELS command.
8397 * 0 - Successfully issued logo off the @vport
8398 * 1 - Failed to issue logo off the @vport
8401 lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
8403 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
8404 struct lpfc_hba *phba = vport->phba;
8405 struct lpfc_iocbq *elsiocb;
8409 cmdsize = 2 * sizeof(uint32_t) + sizeof(struct lpfc_name);
8410 elsiocb = lpfc_prep_els_iocb(vport, 1, cmdsize, 0, ndlp, ndlp->nlp_DID,
8415 pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
8416 *((uint32_t *) (pcmd)) = ELS_CMD_LOGO;
8417 pcmd += sizeof(uint32_t);
8419 /* Fill in LOGO payload */
8420 *((uint32_t *) (pcmd)) = be32_to_cpu(vport->fc_myDID);
8421 pcmd += sizeof(uint32_t);
8422 memcpy(pcmd, &vport->fc_portname, sizeof(struct lpfc_name));
8424 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD,
8425 "Issue LOGO npiv did:x%x flg:x%x",
8426 ndlp->nlp_DID, ndlp->nlp_flag, 0);
8428 elsiocb->iocb_cmpl = lpfc_cmpl_els_npiv_logo;
8429 spin_lock_irq(shost->host_lock);
8430 ndlp->nlp_flag |= NLP_LOGO_SND;
8431 spin_unlock_irq(shost->host_lock);
8432 if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) ==
8434 spin_lock_irq(shost->host_lock);
8435 ndlp->nlp_flag &= ~NLP_LOGO_SND;
8436 spin_unlock_irq(shost->host_lock);
8437 lpfc_els_free_iocb(phba, elsiocb);
8444 * lpfc_fabric_block_timeout - Handler function to the fabric block timer
8445 * @ptr: holder for the timer function associated data.
8447 * This routine is invoked by the fabric iocb block timer after
8448 * timeout. It posts the fabric iocb block timeout event by setting the
8449 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
8450 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
8451 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
8452 * posted event WORKER_FABRIC_BLOCK_TMO.
8455 lpfc_fabric_block_timeout(unsigned long ptr)
8457 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
8458 unsigned long iflags;
8459 uint32_t tmo_posted;
8461 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8462 tmo_posted = phba->pport->work_port_events & WORKER_FABRIC_BLOCK_TMO;
8464 phba->pport->work_port_events |= WORKER_FABRIC_BLOCK_TMO;
8465 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8468 lpfc_worker_wake_up(phba);
8473 * lpfc_resume_fabric_iocbs - Issue a fabric iocb from driver internal list
8474 * @phba: pointer to lpfc hba data structure.
8476 * This routine issues one fabric iocb from the driver internal list to
8477 * the HBA. It first checks whether it's ready to issue one fabric iocb to
8478 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
8479 * remove one pending fabric iocb from the driver internal list and invokes
8480 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
8483 lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
8485 struct lpfc_iocbq *iocb;
8486 unsigned long iflags;
8492 spin_lock_irqsave(&phba->hbalock, iflags);
8493 /* Post any pending iocb to the SLI layer */
8494 if (atomic_read(&phba->fabric_iocb_count) == 0) {
8495 list_remove_head(&phba->fabric_iocb_list, iocb, typeof(*iocb),
8498 /* Increment fabric iocb count to hold the position */
8499 atomic_inc(&phba->fabric_iocb_count);
8501 spin_unlock_irqrestore(&phba->hbalock, iflags);
8503 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
8504 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
8505 iocb->iocb_flag |= LPFC_IO_FABRIC;
8507 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
8508 "Fabric sched1: ste:x%x",
8509 iocb->vport->port_state, 0, 0);
8511 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
8513 if (ret == IOCB_ERROR) {
8514 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
8515 iocb->fabric_iocb_cmpl = NULL;
8516 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
8518 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
8519 cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
8520 iocb->iocb_cmpl(phba, iocb, iocb);
8522 atomic_dec(&phba->fabric_iocb_count);
8531 * lpfc_unblock_fabric_iocbs - Unblock issuing fabric iocb command
8532 * @phba: pointer to lpfc hba data structure.
8534 * This routine unblocks the issuing fabric iocb command. The function
8535 * will clear the fabric iocb block bit and then invoke the routine
8536 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
8537 * from the driver internal fabric iocb list.
8540 lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
8542 clear_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8544 lpfc_resume_fabric_iocbs(phba);
8549 * lpfc_block_fabric_iocbs - Block issuing fabric iocb command
8550 * @phba: pointer to lpfc hba data structure.
8552 * This routine blocks the issuing fabric iocb for a specified amount of
8553 * time (currently 100 ms). This is done by set the fabric iocb block bit
8554 * and set up a timeout timer for 100ms. When the block bit is set, no more
8555 * fabric iocb will be issued out of the HBA.
8558 lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
8562 blocked = test_and_set_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8563 /* Start a timer to unblock fabric iocbs after 100ms */
8565 mod_timer(&phba->fabric_block_timer,
8566 jiffies + msecs_to_jiffies(100));
8572 * lpfc_cmpl_fabric_iocb - Completion callback function for fabric iocb
8573 * @phba: pointer to lpfc hba data structure.
8574 * @cmdiocb: pointer to lpfc command iocb data structure.
8575 * @rspiocb: pointer to lpfc response iocb data structure.
8577 * This routine is the callback function that is put to the fabric iocb's
8578 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
8579 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
8580 * function first restores and invokes the original iocb's callback function
8581 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
8582 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
8585 lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
8586 struct lpfc_iocbq *rspiocb)
8590 if ((cmdiocb->iocb_flag & LPFC_IO_FABRIC) != LPFC_IO_FABRIC)
8593 switch (rspiocb->iocb.ulpStatus) {
8594 case IOSTAT_NPORT_RJT:
8595 case IOSTAT_FABRIC_RJT:
8596 if (rspiocb->iocb.un.ulpWord[4] & RJT_UNAVAIL_TEMP) {
8597 lpfc_block_fabric_iocbs(phba);
8601 case IOSTAT_NPORT_BSY:
8602 case IOSTAT_FABRIC_BSY:
8603 lpfc_block_fabric_iocbs(phba);
8607 stat.un.lsRjtError =
8608 be32_to_cpu(rspiocb->iocb.un.ulpWord[4]);
8609 if ((stat.un.b.lsRjtRsnCode == LSRJT_UNABLE_TPC) ||
8610 (stat.un.b.lsRjtRsnCode == LSRJT_LOGICAL_BSY))
8611 lpfc_block_fabric_iocbs(phba);
8615 if (atomic_read(&phba->fabric_iocb_count) == 0)
8618 cmdiocb->iocb_cmpl = cmdiocb->fabric_iocb_cmpl;
8619 cmdiocb->fabric_iocb_cmpl = NULL;
8620 cmdiocb->iocb_flag &= ~LPFC_IO_FABRIC;
8621 cmdiocb->iocb_cmpl(phba, cmdiocb, rspiocb);
8623 atomic_dec(&phba->fabric_iocb_count);
8624 if (!test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags)) {
8625 /* Post any pending iocbs to HBA */
8626 lpfc_resume_fabric_iocbs(phba);
8631 * lpfc_issue_fabric_iocb - Issue a fabric iocb command
8632 * @phba: pointer to lpfc hba data structure.
8633 * @iocb: pointer to lpfc command iocb data structure.
8635 * This routine is used as the top-level API for issuing a fabric iocb command
8636 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
8637 * function makes sure that only one fabric bound iocb will be outstanding at
8638 * any given time. As such, this function will first check to see whether there
8639 * is already an outstanding fabric iocb on the wire. If so, it will put the
8640 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
8641 * issued later. Otherwise, it will issue the iocb on the wire and update the
8642 * fabric iocb count it indicate that there is one fabric iocb on the wire.
8644 * Note, this implementation has a potential sending out fabric IOCBs out of
8645 * order. The problem is caused by the construction of the "ready" boolen does
8646 * not include the condition that the internal fabric IOCB list is empty. As
8647 * such, it is possible a fabric IOCB issued by this routine might be "jump"
8648 * ahead of the fabric IOCBs in the internal list.
8651 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
8652 * IOCB_ERROR - failed to issue fabric iocb
8655 lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
8657 unsigned long iflags;
8661 if (atomic_read(&phba->fabric_iocb_count) > 1)
8664 spin_lock_irqsave(&phba->hbalock, iflags);
8665 ready = atomic_read(&phba->fabric_iocb_count) == 0 &&
8666 !test_bit(FABRIC_COMANDS_BLOCKED, &phba->bit_flags);
8669 /* Increment fabric iocb count to hold the position */
8670 atomic_inc(&phba->fabric_iocb_count);
8671 spin_unlock_irqrestore(&phba->hbalock, iflags);
8673 iocb->fabric_iocb_cmpl = iocb->iocb_cmpl;
8674 iocb->iocb_cmpl = lpfc_cmpl_fabric_iocb;
8675 iocb->iocb_flag |= LPFC_IO_FABRIC;
8677 lpfc_debugfs_disc_trc(iocb->vport, LPFC_DISC_TRC_ELS_CMD,
8678 "Fabric sched2: ste:x%x",
8679 iocb->vport->port_state, 0, 0);
8681 ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocb, 0);
8683 if (ret == IOCB_ERROR) {
8684 iocb->iocb_cmpl = iocb->fabric_iocb_cmpl;
8685 iocb->fabric_iocb_cmpl = NULL;
8686 iocb->iocb_flag &= ~LPFC_IO_FABRIC;
8687 atomic_dec(&phba->fabric_iocb_count);
8690 spin_lock_irqsave(&phba->hbalock, iflags);
8691 list_add_tail(&iocb->list, &phba->fabric_iocb_list);
8692 spin_unlock_irqrestore(&phba->hbalock, iflags);
8699 * lpfc_fabric_abort_vport - Abort a vport's iocbs from driver fabric iocb list
8700 * @vport: pointer to a virtual N_Port data structure.
8702 * This routine aborts all the IOCBs associated with a @vport from the
8703 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8704 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8705 * list, removes each IOCB associated with the @vport off the list, set the
8706 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8707 * associated with the IOCB.
8709 static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
8711 LIST_HEAD(completions);
8712 struct lpfc_hba *phba = vport->phba;
8713 struct lpfc_iocbq *tmp_iocb, *piocb;
8715 spin_lock_irq(&phba->hbalock);
8716 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
8719 if (piocb->vport != vport)
8722 list_move_tail(&piocb->list, &completions);
8724 spin_unlock_irq(&phba->hbalock);
8726 /* Cancel all the IOCBs from the completions list */
8727 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8732 * lpfc_fabric_abort_nport - Abort a ndlp's iocbs from driver fabric iocb list
8733 * @ndlp: pointer to a node-list data structure.
8735 * This routine aborts all the IOCBs associated with an @ndlp from the
8736 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
8737 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
8738 * list, removes each IOCB associated with the @ndlp off the list, set the
8739 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
8740 * associated with the IOCB.
8742 void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
8744 LIST_HEAD(completions);
8745 struct lpfc_hba *phba = ndlp->phba;
8746 struct lpfc_iocbq *tmp_iocb, *piocb;
8747 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
8749 spin_lock_irq(&phba->hbalock);
8750 list_for_each_entry_safe(piocb, tmp_iocb, &phba->fabric_iocb_list,
8752 if ((lpfc_check_sli_ndlp(phba, pring, piocb, ndlp))) {
8754 list_move_tail(&piocb->list, &completions);
8757 spin_unlock_irq(&phba->hbalock);
8759 /* Cancel all the IOCBs from the completions list */
8760 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8765 * lpfc_fabric_abort_hba - Abort all iocbs on driver fabric iocb list
8766 * @phba: pointer to lpfc hba data structure.
8768 * This routine aborts all the IOCBs currently on the driver internal
8769 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
8770 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
8771 * list, removes IOCBs off the list, set the status feild to
8772 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
8775 void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
8777 LIST_HEAD(completions);
8779 spin_lock_irq(&phba->hbalock);
8780 list_splice_init(&phba->fabric_iocb_list, &completions);
8781 spin_unlock_irq(&phba->hbalock);
8783 /* Cancel all the IOCBs from the completions list */
8784 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8789 * lpfc_sli4_vport_delete_els_xri_aborted -Remove all ndlp references for vport
8790 * @vport: pointer to lpfc vport data structure.
8792 * This routine is invoked by the vport cleanup for deletions and the cleanup
8793 * for an ndlp on removal.
8796 lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *vport)
8798 struct lpfc_hba *phba = vport->phba;
8799 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8800 unsigned long iflag = 0;
8802 spin_lock_irqsave(&phba->hbalock, iflag);
8803 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
8804 list_for_each_entry_safe(sglq_entry, sglq_next,
8805 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
8806 if (sglq_entry->ndlp && sglq_entry->ndlp->vport == vport)
8807 sglq_entry->ndlp = NULL;
8809 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
8810 spin_unlock_irqrestore(&phba->hbalock, iflag);
8815 * lpfc_sli4_els_xri_aborted - Slow-path process of els xri abort
8816 * @phba: pointer to lpfc hba data structure.
8817 * @axri: pointer to the els xri abort wcqe structure.
8819 * This routine is invoked by the worker thread to process a SLI4 slow-path
8823 lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
8824 struct sli4_wcqe_xri_aborted *axri)
8826 uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri);
8827 uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri);
8830 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8831 unsigned long iflag = 0;
8832 struct lpfc_nodelist *ndlp;
8833 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
8835 spin_lock_irqsave(&phba->hbalock, iflag);
8836 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
8837 list_for_each_entry_safe(sglq_entry, sglq_next,
8838 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) {
8839 if (sglq_entry->sli4_xritag == xri) {
8840 list_del(&sglq_entry->list);
8841 ndlp = sglq_entry->ndlp;
8842 sglq_entry->ndlp = NULL;
8843 spin_lock(&pring->ring_lock);
8844 list_add_tail(&sglq_entry->list,
8845 &phba->sli4_hba.lpfc_sgl_list);
8846 sglq_entry->state = SGL_FREED;
8847 spin_unlock(&pring->ring_lock);
8848 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
8849 spin_unlock_irqrestore(&phba->hbalock, iflag);
8850 lpfc_set_rrq_active(phba, ndlp,
8851 sglq_entry->sli4_lxritag,
8854 /* Check if TXQ queue needs to be serviced */
8855 if (!(list_empty(&pring->txq)))
8856 lpfc_worker_wake_up(phba);
8860 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
8861 lxri = lpfc_sli4_xri_inrange(phba, xri);
8862 if (lxri == NO_XRI) {
8863 spin_unlock_irqrestore(&phba->hbalock, iflag);
8866 spin_lock(&pring->ring_lock);
8867 sglq_entry = __lpfc_get_active_sglq(phba, lxri);
8868 if (!sglq_entry || (sglq_entry->sli4_xritag != xri)) {
8869 spin_unlock(&pring->ring_lock);
8870 spin_unlock_irqrestore(&phba->hbalock, iflag);
8873 sglq_entry->state = SGL_XRI_ABORTED;
8874 spin_unlock(&pring->ring_lock);
8875 spin_unlock_irqrestore(&phba->hbalock, iflag);
8879 /* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
8880 * @vport: pointer to virtual port object.
8881 * @ndlp: nodelist pointer for the impacted node.
8883 * The driver calls this routine in response to an SLI4 XRI ABORT CQE
8884 * or an SLI3 ASYNC_STATUS_CN event from the port. For either event,
8885 * the driver is required to send a LOGO to the remote node before it
8886 * attempts to recover its login to the remote node.
8889 lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
8890 struct lpfc_nodelist *ndlp)
8892 struct Scsi_Host *shost;
8893 struct lpfc_hba *phba;
8894 unsigned long flags = 0;
8896 shost = lpfc_shost_from_vport(vport);
8898 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
8899 lpfc_printf_log(phba, KERN_INFO,
8900 LOG_SLI, "3093 No rport recovery needed. "
8901 "rport in state 0x%x\n", ndlp->nlp_state);
8904 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8905 "3094 Start rport recovery on shost id 0x%x "
8906 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
8908 shost->host_no, ndlp->nlp_DID,
8909 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
8912 * The rport is not responding. Remove the FCP-2 flag to prevent
8913 * an ADISC in the follow-up recovery code.
8915 spin_lock_irqsave(shost->host_lock, flags);
8916 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
8917 spin_unlock_irqrestore(shost->host_lock, flags);
8918 lpfc_issue_els_logo(vport, ndlp, 0);
8919 lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);